It would be nice if you could just slide your finger along the bottom row of mutes on the fader page instead of having to individually click the mute on/off for each channel.
That would be most dangerous! Too easy to mute wrong channels by mistake, I would hate that!
In that case, please add this feature as a “slide gesture” preference, with a default setting set to “no”.
We don’t want to forget that some users are doing live concerts, but others use the mixer in a studio situation.