@Dancour2
The Qu-You app is designed to provide control for a single mix to the performer and the intention is that performers can bring and use their own device to control their mix.
In a situation where multiple people are using the same monitor mixes, like a gig with multiple bands, then performers may be using the same mixes, but have different personal devices and want to group inputs differently on the wheels.
So as the app simply remotely controls the mixer, the channel contributions when changing mix will be different and reflect what the mixer is doing – However, the grouping settings for the wheels do not exist in the mixer as a concept and are stored by the app on the device, so these remain the same no matter the mix.
In short, unfortunately what I think you’re wanting to do here is not possible… sorry!
Keith.