On C1500, we don’t have Mix main level fader. To have this, we ahve to mut main faders on each layer on fader12. But when We select AUX mix, it should be the level on AUX 1 mix.
Improvement will be to propose a generic main mix fader on surface tuning to allow generic faders able to be main level of the selected aux mix.
When we choose C1500 its because we don’t have place on stage. But we need access to all inpout and output