Toggling more than one track's musical/linear time base

Is there a way to change multiple (selected) MIDI tracks from musical to linear time base and vice versa? I have a score with 60+ MIDI tracks, and don’t really want to select each track one at a time to change its time base. (I know you can do this to audio tracks with the media pool–but what about MIDI tracks?)

That’s a good question.
I checked the Project Logical Editor, but is seems there is no option for timbase toggle, only other track states like record, mute, etc. Perhaps a feature request is in order unless someone has figured out a way to do it.