Zone control play/pause seperated

I would find it very helpful if I can setup if play/pause would apply to all players in the zone or separated.
For example I have living room and bath as a zone. Of course I only want to play music in the bath if I been there. Now I always must group and ungroup the zone.
Technically it should be possible because Squeezebox did it like this and the use case is not so exotic I think.
Best regards

Hi Markus, did you find a solution? BRS