slide to mute / unmute multiple channels
this would be very handy for live jam situation
with [MUTE] mode enabled, when i tap on muted it is unmuted - and when inkeep touch and slide, all other muted tracks i slide over would be unmuted too .. already unmuted tracka wouls atay unchanges
same in reverse, if intap on ummuted track, it mutes (like now), but when i keep touch and slide, all unmuted tracks i slide over wouls mute too..
just to make it clear, i mean tap here .. in example tap on kick and slide to unmute rest of muted tracks
