Maybe have a TOGGLE button in the far top left corner in the Qu-PAD App which quickly changes the current Display settings
(8 Sliders and Top Row LR / EQ / GEQ / COMPRESSOR view) TO a Dedicated 16 CH Slider Display …
When touching the TOGGLE button again, it would quickly flip back to it’s previous display …
This way in the thinned out 16 Sliders width VIEW, the Sliders could possibly be longer to give more delicate adjustments (like the slider in Qu-Control APP)
Also keep the 16 CH+ view to its bare minimum of features (eg. only have MUTE button ontop of SLIDER) as all the other feature and buttons will be available once in its original view …
I could see the 16 CH thinned slider view to be my MAIN DISPLAY 90% of the time when having to adjust CH Volumes in LIVE Band mixing situations and only quickly TOGGLING to previous VIEW to dial in some EQ, Compression changes etc..)