I guess that if you do have more than 1 iPad this could be what you’re looking for?
The AC-7 Core XT is an 8 fader extension module for use with our AC-7 Core DAW control surface app.
It connects wirelessly to your recording/mixing software via wifi CoreMIDI.
Using multiple iPads, it’s now possible to control 16, 24 or 32 tracks simultaneously.
Run the AC-7 Core app on the first iPad… This will give you 8 + 1 faders and all the controls you need. Run this AC-7 Core XT app on the other iPads…
The faders in this extension app are longer and more widely spaced, so more precise control is possible.
Of course, each track has a scribble strip, level meter, pan display, record arm, solo, mute and select button.