Show/Hide Marker Track Only ‘ — Logic Pro keyboard command of the day

  Show/Hide Marker Track Only ’

Show or hide only the Marker track just below the time/ruler bar.

Show and hide global tracks in Logic Pro — Apple Support

You can also assign and use any of the following Show/Hide key commands for each individual ruler track: Marker, Transposition, Signature, Tempo, Beat Mapping, and Movie. The key commands work directly, without having to open the Global Tracks Configuration dialog.