Cursor/Playhead beeing visible over all tracks, not just in the "ruler view"

Hi All,
The playhead in my Cubase 10.06 ( MAC OS 10.13) does appear only in the “ruler view” above the tracks ( the time/bar display) not over the tracks when moving it, only during playback. Does anyone know, how to change that? And the 2nd ( sorry): The Audio Alignment Panel is greyed out ( also when an “audio event” is marked) in the Audio Tab ( Same Version). Does anyone know, why? Thanks, have a nice day.