[kazmod1]

It is possible (like in other programs) to goes back to default workspaces of program ? I have a problem with that. Thanks for all advices.

[TheOtherCliff]

When you run the GCS from a command prompt with a -help option it says this:

Usage: librepilot-gcs [OPTION]... [FILE]...
Options:
    -help               Display this help
    -version            Display application version
    -no-splash          Don't display splash screen
    -log <file>         Log to specified file
    -client             Attempt to connect to already running instance
    -D <key>=<value>    Permanently set a user setting, e.g: -D General/OverrideLanguage=de
    -reset              Reset user settings to factory defaults.
    -config-file <file> Specify alternate factory defaults settings file (used with -reset)
    -exit-after-config  Exit after manipulating configuration settings
    -noload <plugin>    Do not load <plugin>

So just run it with -reset from command line.

There is also File->GCSImportExportSettings->ResetConfig.  I think that also does what you ask.

I think you can also do it by zeroing all the System->Settings->SystemSettings->GUIConfigData

[kazmod1]

Thank you. All works now like before.