Hi, I've been using BTT for years, and along with Karabiner Elements, is one of the first pieces of software I install on any new mac.
I was wondering if it were possible to add a gesture that recognizes when your palm is resting on the touchpad. I've found that the touchpad on macbooks is large enough to essentially treat this action as an additional key.
I have a fork of Karabiner-Elements I've created that mimics this kind of functionality, essentially adding a set of new properties (is palm down on left/right/top/bottom of the touchpad) that can be keyed on if the area of the detected palm is over a certain threshold. It's a bit buggy, I never managed to get haptics working, and I doubt it'll ever be merged into the main branch, but I think this could be implemented in BTT as a gesture, which would make it possible to configure different behavior per-application more easily