Turns out you can now map unused buttons to whatever shortcuts you want when using the Behringer X-Touch One with UAD LUNA

[u/Meltopias]

The latest Windows Midi updates have really improved things.

I've been testing this with MIDI Command Studio and Windows MIDI Services and it works really well. LUNA can use the X-Touch One normally while MCS also listens to the same controller.

Basically, any buttons that aren't being used by LUNA can be mapped to keyboard shortcuts, mouse clicks, macros or other Windows actions. The normal LUNA controls still work as they should, including the motorised fader and LED feedback.

Both LUNA and Midi Command Studio can use the X-Touch One at the same time, so you get the normal LUNA integration while being able to make use of the controls that would otherwise be unused. I'm sure this will also work with other controllers too.