It would nice to have a “draw” feature on the GEQ screen. Basically, there is a “Draw” button. When it is off, the GEQ works as it does now where you set on fader at a time. When it is on, you can run your finger across the screen to sort of “draw” the shape you want the faders to follow.
See the Mackie Master Fader app QEQ for an example.
I would typically use this to create the general GEQ shape very quickly, then turn it off to fine tune each fader.