VIZIA CRCS2-MRZ RF+ 2 Button Units

There are a couple of threads on these units and one includes some custom .groovy code (which I was unable to setup). Is this code necessary or can ST just talk to these things as regular switches? I don’t want to use the control functionality, just the on/off functionality.

If possible, I would also like the LED’s to be on when the switch is off, but this is more of a “nice to have” right now.