Forgot to mention…
When I want to solo/mute groups of track together via single clicks (of any mixture of track type(s)), I’ll put them in a folder together real quick. If keeping multiple ‘versions’, I’ll duplicate the tracks first…
The entire folder can then be soloed/muted in one click from Project View. It’s not handy from the Mixer, but it can be assigned to a remote control rather quickly…I’m spoiled by multiple screens too, so it’s no big deal doing it from the project window.