Some message boxes offer the possibility to prevent them from
appearing again (“do not ask again”). This command
makes all of them appear again.
Resets all toolbar settings, like location, icon size and text
location back to defaults.
Reverts the currently loaded file back to the last saved state,
discarding all changes that are not saved.
Corresponds to the Rewind toolbar
button. If the playback is currently running, it skips backward
by 1/10 of the visible range. If the playback is not running,
this does the same as the command