Here's a method to reprogram the physical keys on an ATEM switcher. Works well with the ATEM Mini Pro, Mini Extreme ISO, etc.
https://labs.mixeffect.app/article/2024 ... r-buttons/I have a video tutorial here as well:
It involves using Companion (and my MixEffect app, though you may be able to get away with using just Companion and the ATEM module) to detect when the exact setting is turned on when one of the physical buttons is pressed. This works well for the PIP buttons, since they always set the DVE to the same parameters, but can also be used with the Transition or Duration preset buttons.
Caveat is that you can't set those values anymore in Companion, ATEM Software Control, or MixEffect because the trigger will fire.
Developer of MixEffect, the best app for controlling your ATEM switchers using your iPhone, iPad, and Apple Silicon Mac: https://mixeffect.app