Cheers!
It was sooooo simple in the end. But I never would have guessed that 'status' would have been the variable type. I was looking for binary,0,1, even on,off...but status? Where does that come from?
Tested the 'local override switch' and that works - switches realy and updates myc dashboard.
Finally I feel like I might be getting somewhere with all this! 🙂