This is Jochen_Trappe’s first response on the matter.
This is pettor’s code.
I timidly tried to modify some factory scripts, and I don’t think I can test these yet, they’re too difficult for me. I’m still doing stuff in the Surface editor.
One more easy way, additionally on what @Nico5 proposes, is allow 1:2 assignments for each element, as it is currently possible in the Generic Remote.
Knob 1 I could have it zoom in for range 50% → 100% and at the same time zoom out for range 50% → 0%. Or 66-100 and 0-33, or 33-0, depending on how the knob functions. Invert value is already there as an option.
This is literally the only thing I’m missing right now from the Surface Editor (ok, apart from Inserts, Strip, Send Pan and other such little things.)