[client] Fix translation on Qt5

12 files changed, 278 insertions, 240 deletions

diff --git a/i18n/client/pvsclient_ar_JO.ts b/i18n/client/pvsclient_ar_JO.ts
index 61d4969..5a5f46c 100644
--- a/i18n/client/pvsclient_ar_JO.ts
+++ b/i18n/client/pvsclient_ar_JO.ts
@@ -130,53 +130,53 @@
 <context>
     <name>Toolbar</name>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="162"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="164"/>
         <source>&amp;Connect...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="163"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
         <source>&amp;Disconnect</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
         <source>&amp;Information...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="166"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="168"/>
         <source>&amp;What&apos;s this?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="169"/>
         <source>&amp;Quit</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="337"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="339"/>
         <source>Streaming</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="358"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="360"/>
         <source>Offline</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="471"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="469"/>
         <source>About PVS Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="472"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="470"/>
         <source>The PVS - client is part of a software system for managing the virtual data traffic within the computer pools, between the tutor&apos;s and student&apos;s PCs. It has been developed to simplify the information traffic in seminars and general eLearning.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="343"/>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="381"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="345"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="383"/>
         <source>Online</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/i18n/client/pvsclient_de_DE.ts b/i18n/client/pvsclient_de_DE.ts
index 9695544..c337670 100644
--- a/i18n/client/pvsclient_de_DE.ts
+++ b/i18n/client/pvsclient_de_DE.ts
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.1" language="de_DE" sourcelanguage="en_US">
+<TS version="2.0" language="de_DE" sourcelanguage="en_US">
 <context>
     <name>ConnectWindow</name>
     <message>
@@ -106,7 +106,7 @@
     <message>
         <location filename="../../src/client/connectwindow/connectwindow.cpp" line="118"/>
         <source>Unknown state :-(</source>
-        <translation type="unfinished"></translation>
+        <translation>Unbekannter Zustand :-(</translation>
     </message>
     <message>
         <location filename="../../src/client/connectwindow/connectwindow.cpp" line="261"/>
@@ -130,53 +130,53 @@
 <context>
     <name>Toolbar</name>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="162"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="164"/>
         <source>&amp;Connect...</source>
         <translation>&amp;Verbinden...</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="163"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
         <source>&amp;Disconnect</source>
         <translation>&amp;Trennen</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
         <source>&amp;Information...</source>
         <translation>System&amp;information</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="166"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="168"/>
         <source>&amp;What&apos;s this?</source>
         <translation>&amp;Was ist das hier?</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="169"/>
         <source>&amp;Quit</source>
         <translation>&amp;Beenden</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="337"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="339"/>
         <source>Streaming</source>
         <translation>Übertragung</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="358"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="360"/>
         <source>Offline</source>
         <translation>Offline</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="471"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="469"/>
         <source>About PVS Client</source>
         <translation>Über PVS Client</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="472"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="470"/>
         <source>The PVS - client is part of a software system for managing the virtual data traffic within the computer pools, between the tutor&apos;s and student&apos;s PCs. It has been developed to simplify the information traffic in seminars and general eLearning.</source>
-        <translation>Der PVS - Client ist Teil eines Softwaresystems für die Steuerung des virtuellen Datenverkehrs in den Poolräumen zwischen den Dozenten- und Studenten - PCs. Es wurde zur Vereinfachung des Informationsflusses und allgemeinem eLearning entwickelt.</translation>
+        <translation>Der PVS-Client ist Teil eines Softwaresystems für die Steuerung des virtuellen Datenverkehrs in den Poolräumen zwischen den Dozenten- und Studenten - PCs. Es wurde zur Vereinfachung des Informationsflusses und allgemeinem eLearning entwickelt.</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="343"/>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="381"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="345"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="383"/>
         <source>Online</source>
         <translation>Online</translation>
     </message>
diff --git a/i18n/client/pvsclient_es_MX.ts b/i18n/client/pvsclient_es_MX.ts
index 6b1e16d..1063146 100644
--- a/i18n/client/pvsclient_es_MX.ts
+++ b/i18n/client/pvsclient_es_MX.ts
@@ -130,53 +130,53 @@
 <context>
     <name>Toolbar</name>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="162"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="164"/>
         <source>&amp;Connect...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="163"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
         <source>&amp;Disconnect</source>
         <translation type="unfinished">&amp;Desconectar</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
         <source>&amp;Information...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="166"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="168"/>
         <source>&amp;What&apos;s this?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="169"/>
         <source>&amp;Quit</source>
         <translation type="unfinished">&amp;Cerrar</translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="337"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="339"/>
         <source>Streaming</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="358"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="360"/>
         <source>Offline</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="471"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="469"/>
         <source>About PVS Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="472"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="470"/>
         <source>The PVS - client is part of a software system for managing the virtual data traffic within the computer pools, between the tutor&apos;s and student&apos;s PCs. It has been developed to simplify the information traffic in seminars and general eLearning.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="343"/>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="381"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="345"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="383"/>
         <source>Online</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/i18n/client/pvsclient_fr_FR.ts b/i18n/client/pvsclient_fr_FR.ts
index 61d4969..5a5f46c 100644
--- a/i18n/client/pvsclient_fr_FR.ts
+++ b/i18n/client/pvsclient_fr_FR.ts
@@ -130,53 +130,53 @@
 <context>
     <name>Toolbar</name>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="162"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="164"/>
         <source>&amp;Connect...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="163"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
         <source>&amp;Disconnect</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
         <source>&amp;Information...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="166"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="168"/>
         <source>&amp;What&apos;s this?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="169"/>
         <source>&amp;Quit</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="337"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="339"/>
         <source>Streaming</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="358"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="360"/>
         <source>Offline</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="471"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="469"/>
         <source>About PVS Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="472"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="470"/>
         <source>The PVS - client is part of a software system for managing the virtual data traffic within the computer pools, between the tutor&apos;s and student&apos;s PCs. It has been developed to simplify the information traffic in seminars and general eLearning.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="343"/>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="381"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="345"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="383"/>
         <source>Online</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/i18n/client/pvsclient_pl_PL.ts b/i18n/client/pvsclient_pl_PL.ts
index 61d4969..5a5f46c 100644
--- a/i18n/client/pvsclient_pl_PL.ts
+++ b/i18n/client/pvsclient_pl_PL.ts
@@ -130,53 +130,53 @@
 <context>
     <name>Toolbar</name>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="162"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="164"/>
         <source>&amp;Connect...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="163"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
         <source>&amp;Disconnect</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="165"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
         <source>&amp;Information...</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="166"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="168"/>
         <source>&amp;What&apos;s this?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="167"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="169"/>
         <source>&amp;Quit</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="337"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="339"/>
         <source>Streaming</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="358"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="360"/>
         <source>Offline</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="471"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="469"/>
         <source>About PVS Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="472"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="470"/>
         <source>The PVS - client is part of a software system for managing the virtual data traffic within the computer pools, between the tutor&apos;s and student&apos;s PCs. It has been developed to simplify the information traffic in seminars and general eLearning.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="343"/>
-        <location filename="../../src/client/toolbar/toolbar.cpp" line="381"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="345"/>
+        <location filename="../../src/client/toolbar/toolbar.cpp" line="383"/>
         <source>Online</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/i18n/server/pvsmgr_ar_JO.ts b/i18n/server/pvsmgr_ar_JO.ts
index 1ad154e..4d7e0d7 100644
--- a/i18n/server/pvsmgr_ar_JO.ts
+++ b/i18n/server/pvsmgr_ar_JO.ts
@@ -203,6 +203,14 @@ Note that all clients will be deleted.</source>
         <source>Sure, You want to delete selected client?</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Lock/Unlock single client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Lock or unlock the selected client</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>NumericKeyboard</name>
diff --git a/i18n/server/pvsmgr_de_DE.ts b/i18n/server/pvsmgr_de_DE.ts
index 9c6d0ae..d832f0d 100644
--- a/i18n/server/pvsmgr_de_DE.ts
+++ b/i18n/server/pvsmgr_de_DE.ts
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
-<TS version="2.1" language="de_DE" sourcelanguage="en_US">
+<TS version="2.0" language="de_DE" sourcelanguage="en_US">
 <context>
     <name>ConnectionFrame</name>
     <message>
@@ -64,13 +64,13 @@
     <message>
         <location filename="../../gui/server_normal/help.ui" line="407"/>
         <source>Set selected client to tutor.</source>
-        <translation>Ausgewählten Klienten als Tutor festlegen.</translation>
+        <translation>Ausgewählten Client als Tutor festlegen.</translation>
     </message>
 </context>
 <context>
     <name>MainWindow</name>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="166"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="167"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="102"/>
         <source>Exit</source>
         <translation>Ausgang</translation>
@@ -121,159 +121,173 @@
         <translation>Kein Projektionsziel verfügbar.</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>Selection</source>
         <translation>Auswahl</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>This client is still connected.</source>
         <translation>Dieser Client ist noch verbunden.</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1304"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1330"/>
         <source>Sure, You want to delete selected client?</source>
         <translation>Sicher, dass Sie den ausgewählten Clienten löschen wollen?</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="675"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="677"/>
         <source>Sure, You want to change SessionName again?
 All Clients will be deleted afterwards.</source>
         <translation>Sicher, dass Sie den Sitzungsname erneut ändern wollen?
 Danach werden alle Clienten gelöscht sein.</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="700"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="702"/>
         <source>Session Name: %1  [click to edit]</source>
         <translation>Sitzungsname: %1  [anklicken editiert]</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="806"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="808"/>
         <source>No item selected, please select room!</source>
         <translation>Keine Auswahl getroffen, bitte einen Raum auswählen!</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="809"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="811"/>
         <source>Are you sure you want to reload the room?
 Note that all clients will be deleted.</source>
         <translation>Wollen Sie den Raum wirklich neu laden? Beachten Sie, dass alle Clienten gelöscht werden.</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="871"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="873"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="875"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="903"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="877"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="905"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="907"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="909"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="911"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="941"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="913"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="943"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="945"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="947"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="949"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="979"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="951"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="981"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="983"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="985"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="987"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="989"/>
         <source>Projection</source>
         <translation>Projektion</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
         <source>No client is selected.</source>
         <translation>Kein Client ausgewählt.</translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
         <source>The selected client is not connected.</source>
         <translation>Ausgewählter Client ist nicht verbunden.</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="184"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="185"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="103"/>
         <source>Lock or Unlock all Clients</source>
-        <translation>Alle Klienten sperren oder entsperren</translation>
+        <translation>Alle Clients sperren oder entsperren</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="163"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="164"/>
         <source>&amp;Exit</source>
         <translation>&amp;Abbruch</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="169"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="170"/>
         <source>Ctrl+Q</source>
         <translation>Strg+Q</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="181"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="182"/>
         <source>lock</source>
         <translation>lock</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="187"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="188"/>
         <source>Ctrl+A</source>
         <translation>Strg+A</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="196"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="197"/>
         <source>Student&apos;s Screen to Tutor</source>
         <translation>Studierendenbildschirm an Tutor</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="205"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="206"/>
         <source>Student&apos;s Screen to Tutor, others blanked</source>
         <translation>Studierendenbildschirm an Tutor; alle anderen ausgeblendet</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="214"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="215"/>
         <source>Tutor&apos;s Screen to Student</source>
         <translation>Tutorenbildschirm an Studierenden</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="223"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="224"/>
         <source>Tutor&apos;s Screen to Everyone</source>
         <translation>Tutorenbildschirm an alle</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="232"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="233"/>
         <source>Stop Projection on every Client</source>
-        <translation>Projektion an alle Clienten abbrechen</translation>
+        <translation>Projektion an alle Clients abbrechen</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="241"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="242"/>
         <source>SetAsTutor</source>
         <translation>AlsTutorSetzen</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="244"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="245"/>
         <source>Set current Frame as Tutor</source>
         <translation>Derzeitigen Rahmen als Tutor festlegen</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="253"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="256"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="254"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="257"/>
         <source>Delete Client</source>
         <translation>Lösche Client</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="268"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="271"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="269"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="272"/>
         <source>Help</source>
         <translation>Hilfe</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="283"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="286"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="284"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="287"/>
         <source>Reload Room Configuration</source>
         <translation>Neu laden der Raumkonfiguration</translation>
     </message>
     <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="296"/>
+        <source>Lock/Unlock single client</source>
+        <translation>Einzelnen Client (ent)sperren</translation>
+    </message>
+    <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="299"/>
+        <source>Lock or unlock the selected client</source>
+        <translation>Den ausgewählten Client sperren btw. entsperren</translation>
+    </message>
+    <message>
         <location filename="../../gui/server_normal/mainwindow.ui" line="120"/>
         <source>toolBar</source>
         <translation>toolBar</translation>
diff --git a/i18n/server/pvsmgr_es_MX.ts b/i18n/server/pvsmgr_es_MX.ts
index b47934f..1343443 100644
--- a/i18n/server/pvsmgr_es_MX.ts
+++ b/i18n/server/pvsmgr_es_MX.ts
@@ -70,7 +70,7 @@
 <context>
     <name>MainWindow</name>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="166"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="167"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="102"/>
         <source>Exit</source>
         <translation>Salir</translation>
@@ -121,154 +121,168 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>Selection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>This client is still connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1304"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1330"/>
         <source>Sure, You want to delete selected client?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="675"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="677"/>
         <source>Sure, You want to change SessionName again?
 All Clients will be deleted afterwards.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="700"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="702"/>
         <source>Session Name: %1  [click to edit]</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="806"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="808"/>
         <source>No item selected, please select room!</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="809"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="811"/>
         <source>Are you sure you want to reload the room?
 Note that all clients will be deleted.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="871"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="873"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="875"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="903"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="877"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="905"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="907"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="909"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="911"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="941"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="913"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="943"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="945"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="947"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="949"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="979"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="951"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="981"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="983"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="985"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="987"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="989"/>
         <source>Projection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
         <source>No client is selected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
         <source>The selected client is not connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="184"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="185"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="103"/>
         <source>Lock or Unlock all Clients</source>
         <translation>Bloquear o desbloquear todos los clientes</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="163"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="164"/>
         <source>&amp;Exit</source>
         <translation>&amp;Salir</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="169"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="170"/>
         <source>Ctrl+Q</source>
         <translation>Ctrl+Q</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="196"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="197"/>
         <source>Student&apos;s Screen to Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="205"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="206"/>
         <source>Student&apos;s Screen to Tutor, others blanked</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="214"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="215"/>
         <source>Tutor&apos;s Screen to Student</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="223"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="224"/>
         <source>Tutor&apos;s Screen to Everyone</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="232"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="233"/>
         <source>Stop Projection on every Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="241"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="242"/>
         <source>SetAsTutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="244"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="245"/>
         <source>Set current Frame as Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="253"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="256"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="254"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="257"/>
         <source>Delete Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="268"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="271"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="269"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="272"/>
         <source>Help</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="283"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="286"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="284"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="287"/>
         <source>Reload Room Configuration</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="181"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="296"/>
+        <source>Lock/Unlock single client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="299"/>
+        <source>Lock or unlock the selected client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="182"/>
         <source>lock</source>
         <translation>bloquear</translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="187"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="188"/>
         <source>Ctrl+A</source>
         <translation>Ctrl+A</translation>
     </message>
diff --git a/i18n/server/pvsmgr_fr_FR.ts b/i18n/server/pvsmgr_fr_FR.ts
index f41176d..e571973 100644
--- a/i18n/server/pvsmgr_fr_FR.ts
+++ b/i18n/server/pvsmgr_fr_FR.ts
@@ -70,7 +70,7 @@
 <context>
     <name>MainWindow</name>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="166"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="167"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="102"/>
         <source>Exit</source>
         <translation type="unfinished"></translation>
@@ -121,158 +121,172 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>Selection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>This client is still connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1304"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1330"/>
         <source>Sure, You want to delete selected client?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="675"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="677"/>
         <source>Sure, You want to change SessionName again?
 All Clients will be deleted afterwards.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="700"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="702"/>
         <source>Session Name: %1  [click to edit]</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="806"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="808"/>
         <source>No item selected, please select room!</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="809"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="811"/>
         <source>Are you sure you want to reload the room?
 Note that all clients will be deleted.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="871"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="873"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="875"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="903"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="877"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="905"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="907"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="909"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="911"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="941"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="913"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="943"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="945"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="947"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="949"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="979"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="951"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="981"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="983"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="985"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="987"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="989"/>
         <source>Projection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
         <source>No client is selected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
         <source>The selected client is not connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="184"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="185"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="103"/>
         <source>Lock or Unlock all Clients</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="163"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="164"/>
         <source>&amp;Exit</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="169"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="170"/>
         <source>Ctrl+Q</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="181"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="182"/>
         <source>lock</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="187"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="188"/>
         <source>Ctrl+A</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="196"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="197"/>
         <source>Student&apos;s Screen to Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="205"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="206"/>
         <source>Student&apos;s Screen to Tutor, others blanked</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="214"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="215"/>
         <source>Tutor&apos;s Screen to Student</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="223"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="224"/>
         <source>Tutor&apos;s Screen to Everyone</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="232"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="233"/>
         <source>Stop Projection on every Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="241"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="242"/>
         <source>SetAsTutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="244"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="245"/>
         <source>Set current Frame as Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="253"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="256"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="254"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="257"/>
         <source>Delete Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="268"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="271"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="269"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="272"/>
         <source>Help</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="283"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="286"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="284"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="287"/>
         <source>Reload Room Configuration</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="296"/>
+        <source>Lock/Unlock single client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="299"/>
+        <source>Lock or unlock the selected client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
         <location filename="../../gui/server_normal/mainwindow.ui" line="120"/>
         <source>toolBar</source>
         <translation type="unfinished"></translation>
diff --git a/i18n/server/pvsmgr_pl_PL.ts b/i18n/server/pvsmgr_pl_PL.ts
index f41176d..e571973 100644
--- a/i18n/server/pvsmgr_pl_PL.ts
+++ b/i18n/server/pvsmgr_pl_PL.ts
@@ -70,7 +70,7 @@
 <context>
     <name>MainWindow</name>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="166"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="167"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="102"/>
         <source>Exit</source>
         <translation type="unfinished"></translation>
@@ -121,158 +121,172 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>Selection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1300"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1326"/>
         <source>This client is still connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1304"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1330"/>
         <source>Sure, You want to delete selected client?</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="675"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="677"/>
         <source>Sure, You want to change SessionName again?
 All Clients will be deleted afterwards.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="700"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="702"/>
         <source>Session Name: %1  [click to edit]</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="806"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="808"/>
         <source>No item selected, please select room!</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="809"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="811"/>
         <source>Are you sure you want to reload the room?
 Note that all clients will be deleted.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="871"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="873"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="875"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="903"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="877"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="905"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="907"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="909"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="911"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="941"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="913"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="943"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="945"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="947"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="949"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="979"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="951"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="981"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="983"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="985"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="987"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="989"/>
         <source>Projection</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1056"/>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1296"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1044"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1085"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1322"/>
         <source>No client is selected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1062"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1051"/>
+        <location filename="../../src/server/mainwindow/mainwindow.cpp" line="1091"/>
         <source>The selected client is not connected.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="184"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="185"/>
         <location filename="../../src/server/mainwindow/mainwindow.cpp" line="103"/>
         <source>Lock or Unlock all Clients</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="163"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="164"/>
         <source>&amp;Exit</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="169"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="170"/>
         <source>Ctrl+Q</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="181"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="182"/>
         <source>lock</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="187"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="188"/>
         <source>Ctrl+A</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="196"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="197"/>
         <source>Student&apos;s Screen to Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="205"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="206"/>
         <source>Student&apos;s Screen to Tutor, others blanked</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="214"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="215"/>
         <source>Tutor&apos;s Screen to Student</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="223"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="224"/>
         <source>Tutor&apos;s Screen to Everyone</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="232"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="233"/>
         <source>Stop Projection on every Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="241"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="242"/>
         <source>SetAsTutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="244"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="245"/>
         <source>Set current Frame as Tutor</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="253"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="256"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="254"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="257"/>
         <source>Delete Client</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="268"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="271"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="269"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="272"/>
         <source>Help</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="283"/>
-        <location filename="../../gui/server_normal/mainwindow.ui" line="286"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="284"/>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="287"/>
         <source>Reload Room Configuration</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="296"/>
+        <source>Lock/Unlock single client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../../gui/server_normal/mainwindow.ui" line="299"/>
+        <source>Lock or unlock the selected client</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
         <location filename="../../gui/server_normal/mainwindow.ui" line="120"/>
         <source>toolBar</source>
         <translation type="unfinished"></translation>
diff --git a/pvsclient.qrc b/pvsclient.qrc
index e47a275..b5fcd79 100644
--- a/pvsclient.qrc
+++ b/pvsclient.qrc
@@ -4,7 +4,7 @@
         <file alias="darrow16.svg">icons/darrow16.svg</file>
         <file alias="ok16.svg">icons/ok16.svg</file>
         <file alias="cam32.svg">icons/cam32.svg</file>
-		<file alias="eye">icons/eye.svg</file>
+        <file alias="eye">icons/eye.svg</file>
         <file alias="chat_msg16.svg">icons/chat_msg16.svg</file>
         <file alias="reset">icons/keyboard_key.svg</file>
         <file alias="space">icons/space.svg</file>
@@ -12,35 +12,10 @@
         <file alias="hand-raise">icons/hand-raise.svg</file>
         <file alias="hand-raise-red">icons/hand-raise-red.svg</file>
         <file alias="AUTHORS">AUTHORS</file>
-    </qresource>
-    <qresource lang="de_DE" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_de_DE.qm</file>
-    </qresource>
-    <qresource lang="de" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_de_DE.qm</file>
-    </qresource>
-    <qresource lang="fr_FR" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_fr_FR.qm</file>
-    </qresource>
-    <qresource lang="fr" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_fr_FR.qm</file>
-    </qresource>
-    <qresource lang="es_MX" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_es_MX.qm</file>
-    </qresource>
-    <qresource lang="es" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_es_MX.qm</file>
-    </qresource>
-    <qresource lang="ar_JO" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_ar_JO.qm</file>
-    </qresource>
-    <qresource lang="ar" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_ar_JO.qm</file>
-    </qresource>
-    <qresource lang="pl_PL" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_pl_PL.qm</file>
-    </qresource>
-    <qresource lang="pl" prefix="/">
-        <file alias="pvsclient.qm">build/pvsclient_pl_PL.qm</file>
+        <file alias="l_de">build/pvsclient_de_DE.qm</file>
+        <file alias="l_fr">build/pvsclient_fr_FR.qm</file>
+        <file alias="l_es_MX">build/pvsclient_es_MX.qm</file>
+        <file alias="l_ar_JO">build/pvsclient_ar_JO.qm</file>
+        <file alias="l_pl">build/pvsclient_pl_PL.qm</file>
     </qresource>
 </RCC>
diff --git a/src/client/clientapp/clientapp.cpp b/src/client/clientapp/clientapp.cpp
index 251b755..2f65bd1 100644
--- a/src/client/clientapp/clientapp.cpp
+++ b/src/client/clientapp/clientapp.cpp
@@ -22,12 +22,11 @@ ClientApp::ClientApp(int& argc, char** argv)
 	/* set translator */
 	// System strings
 	QTranslator *qtTranslator = new QTranslator(this);
-	qtTranslator->load("qt_" + QLocale::system().name(),
-	QLibraryInfo::location(QLibraryInfo::TranslationsPath));
+	qtTranslator->load(QLocale::system(), "qt", "_", QLibraryInfo::location(QLibraryInfo::TranslationsPath));
 	installTranslator(qtTranslator);
 	// App specific
 	QTranslator *translator = new QTranslator(this);
-	translator->load(":pvsclient");
+	translator->load(QLocale::system(), ":", "l_");
 	installTranslator(translator);
 
 	readIsManagerPc();