New Fader in Magic sheet - master several faders possible?

Working on a Magic Sheet for busking I was hoping to find a way to set two groups of faders at levels (like an old fashion 2 scene preset) and then fade between them with an A/B type fader. Has anyone come up with a way to achieve this with the new fader symbol?

If a submaster could be set to inhibit a group of subs instead of channels something could be done with two sets of identical subs with different numbers and a pair of inhibitive subs to allow pile on and crossfade. Any ideas using macros, sneak or assert to approach this?

I can see a macro crossfading between two sets of subs, but then I can't figure how to re-set the faders for the next move without having the changes show on stage.

Related