diff --git a/src/main/resources/config/application-dev-gui.properties b/src/main/resources/config/application-dev-gui.properties
index a22c98bc..8069b264 100644
--- a/src/main/resources/config/application-dev-gui.properties
+++ b/src/main/resources/config/application-dev-gui.properties
@@ -1,11 +1,11 @@
 server.address=localhost
-server.port=8090
+server.port=8080
 
 sebserver.gui.http.external.scheme=http
 sebserver.gui.entrypoint=/gui
 sebserver.gui.webservice.protocol=http
 sebserver.gui.webservice.address=localhost
-sebserver.gui.webservice.port=8090
+sebserver.gui.webservice.port=8080
 sebserver.gui.webservice.apipath=/admin-api/v1
 # defines the polling interval that is used to poll the webservice for client connection data on a monitored exam page
 sebserver.gui.webservice.poll-interval=1000
diff --git a/src/main/resources/config/application-dev-ws.properties b/src/main/resources/config/application-dev-ws.properties
index 277c15de..81ac2bc0 100644
--- a/src/main/resources/config/application-dev-ws.properties
+++ b/src/main/resources/config/application-dev-ws.properties
@@ -22,7 +22,7 @@ sebserver.webservice.clean-db-on-startup=false
 
 # webservice configuration
 sebserver.init.adminaccount.gen-on-init=false
-sebserver.webservice.distributed=true
+sebserver.webservice.distributed=false
 sebserver.webservice.master.delay.threshold=10000
 sebserver.webservice.http.external.scheme=http
 sebserver.webservice.http.external.servername=localhost
diff --git a/src/main/resources/messages.properties b/src/main/resources/messages.properties
index 9b945c8d..d0c97e2e 100644
--- a/src/main/resources/messages.properties
+++ b/src/main/resources/messages.properties
@@ -1449,23 +1449,24 @@ sebserver.examconfig.props.group.zoom_features.tooltip=
 sebserver.examconfig.props.group.zoom_controls=Zoom User Controls
 sebserver.examconfig.props.group.zoom_controls.tooltip=When the proctoring view is disabled (see its display policy on left), users can mute and unmute audio and video manually.<br/>Audio and video streams can be disabled globally with the settings below.
 sebserver.examconfig.props.label.zoomAudioMuted=Audio Initially Muted
-sebserver.examconfig.props.label.zoomAudioMuted.tooltip=
+sebserver.examconfig.props.label.zoomAudioMuted.tooltip=Not yet implemented
 sebserver.examconfig.props.label.zoomAudioOnly=Audio Only
-sebserver.examconfig.props.label.zoomAudioOnly.tooltip=
+sebserver.examconfig.props.label.zoomAudioOnly.tooltip=If this option is activated, cameras on SEB clients are not active until the proctoring window is opened by the proctor<br/>(and they are deactivated if it is closed again!)
 sebserver.examconfig.props.label.zoomEnable=Enable Zoom
 sebserver.examconfig.props.label.zoomEnable.tooltip=
 sebserver.examconfig.props.label.zoomFeatureFlagChat=Enable Chat
-sebserver.examconfig.props.label.zoomFeatureFlagChat.tooltip=
+sebserver.examconfig.props.label.zoomFeatureFlagChat.tooltip=Allows SEB users to use Zoom's chat function in SEB, if the proctor enables chat in the proctoring window on SEB Server
 sebserver.examconfig.props.label.zoomFeatureFlagCloseCaptions=Enable Close Captions
-sebserver.examconfig.props.label.zoomFeatureFlagCloseCaptions.tooltip=
-sebserver.examconfig.props.label.zoomFeatureFlagDisplayingMeetingName=Display Meeting Name
-sebserver.examconfig.props.label.zoomFeatureFlagDisplayMeetingName.tooltip
+sebserver.examconfig.props.label.zoomFeatureFlagCloseCaptions.tooltip=Not yet implemented
+sebserver.examconfig.props.label.zoomFeatureFlagDisplayMeetingName=Display Meeting Name
+sebserver.examconfig.props.label.zoomFeatureFlagDisplayMeetingName.tooltip=Not yet implemented
+
 sebserver.examconfig.props.label.zoomFeatureFlagRaiseHand=Enable Raise Hand
-sebserver.examconfig.props.label.zoomFeatureFlagRaiseHand.tooltip=
+sebserver.examconfig.props.label.zoomFeatureFlagRaiseHand.tooltip=Allows SEB users to use Zoom's raise hand function in SEB during a broadcast or chat
 sebserver.examconfig.props.label.zoomFeatureFlagRecording=Allow Recording
 sebserver.examconfig.props.label.zoomFeatureFlagRecording.tooltip=
 sebserver.examconfig.props.label.zoomFeatureFlagTileView=Allow Tile View
-sebserver.examconfig.props.label.zoomFeatureFlagTileView.tooltip=Note: Disabling Allow Tile View is not yet functional in this version.
+sebserver.examconfig.props.label.zoomFeatureFlagTileView.tooltip=Not yet implemented
 sebserver.examconfig.props.label.zoomRoom=Room
 sebserver.examconfig.props.label.zoomRoom.tooltip=
 sebserver.examconfig.props.label.zoomServerURL=Server URL
@@ -1481,16 +1482,16 @@ sebserver.examconfig.props.label.zoomUserInfoDisplayName.tooltip=
 sebserver.examconfig.props.label.zoomUserInfoEMail=Info Mail
 sebserver.examconfig.props.label.zoomUserInfoEMail.tooltip=
 sebserver.examconfig.props.label.zoomVideoMuted=Video Initially Muted
-sebserver.examconfig.props.label.zoomVideoMuted.tooltip=
+sebserver.examconfig.props.label.zoomVideoMuted.tooltip=If this option is activated, a video broadcasts or chat starts with SEB clients cameras off.<br/>The SEB users then can start/stop their video individually using the respective button in the Zoom windows in SEB
 
 sebserver.examconfig.props.label.zoomReceiveAudio=Receive Audio
-sebserver.examconfig.props.label.zoomReceiveAudio.tooltip=Global settings for receiving and sending audio/video streams.<br/>Streams can also be enabled/disabled by SEB Server during the exam session.
+sebserver.examconfig.props.label.zoomReceiveAudio.tooltip=Not yet implemented
 sebserver.examconfig.props.label.zoomReceiveVideo=Receive Video
-sebserver.examconfig.props.label.zoomReceiveVideo.tooltip=Global settings for receiving and sending audio/video streams.<br/>Streams can also be enabled/disabled by SEB Server during the exam session.
+sebserver.examconfig.props.label.zoomReceiveVideo.tooltip=Controls video connection if Proctoring View Display Policy allows initial display of Zoom window on SEB startup
 sebserver.examconfig.props.label.zoomSendAudio=Send Audio
-sebserver.examconfig.props.label.zoomSendAudio.tooltip=Global settings for receiving and sending audio/video streams.<br/>Streams can also be enabled/disabled by SEB Server during the exam session.
+sebserver.examconfig.props.label.zoomSendAudio.tooltip=Not yet implemented
 sebserver.examconfig.props.label.zoomSendVideo=Send Video
-sebserver.examconfig.props.label.zoomSendVideo.tooltip=Global settings for receiving and sending audio/video streams.<br/>Streams can also be enabled/disabled by SEB Server during the exam session.
+sebserver.examconfig.props.label.zoomSendVideo.tooltip=Not yet implemented
 
 
 sebserver.examconfig.props.label.showProctoringViewButton=Show Proctoring Button