I would like ‘Mute’ to work like ‘Solo’ in how it will will alternate the Solo state with muted channels if you have them selected.
First demonstration is pressing ‘S’ solo hot key. Second time, is ‘M’ mute key.
You can see the 2nd time, ‘M’ key only unmutes/mutes, it doesn’t alternate.
This is sometimes needed to A/B without having to solo all the other tracks.
It can also be used creatively when mixing to alternate between two or more different channels