This is a rather esoteric request. My home has several Sonos systems and it also has a Monoprice six-zone audio controller. A Sonos is one of the sources for the audio controller. What I’d like to do is be able to combine my grouping options into one lovelace card. I’m using a mini-media-player card to handle grouping of Sonos.
I understand it’s not possible to group audio from different sources but in this case, the sources are all Sonos and I need to turn additional speakers on/off that are controlled by my Monoprice controller. I can group all the zone speakers with a simple entities card that turns them on/off and that essentially groups them all with the Sonos source but it would be nice to have it all under a single interface.
Any ideas?