I think this would be very helpful! :) Right now, I have my keyboard shortcut set to SHIFT + S for Solo or SHIFT + M for Mute. Sometimes if I'm tracking guitars with two different mics per sound, if I want to A/B guitar 1 vs guitar 2 on the fly, there is no fast way to toggle between the 4 channels back and forth; two at a time in Studio One. This can be done in Pro Tools where you for example, solo both tracks of guitar 1, then select all four channels of guitar 1 and guitar 2, then hit SHIFT + S, and it will now toggle back and forth between both sounds on the fly. This can be done with Mute as well. This is super handy not only for that purpose, but auditioning different sounds during a mix as well where you want to mute and unmute a handful of tracks back and forth, toggling them in real time.