Easily switch the music from one room to another

I have different rooms equiped with wall-mounted Play 3 devices. I would appreciate for an easy way to switch the music from one room to another. This is particularly useful if I spent some time building a playlist or selecting a radio station and that I don't want to have to go through search to find that station again. At the moment, my two options seems to be: 1- Stop the music in Room 1, then start music in Room 2 (need to rebuilt my playlist or search the radio station) 2- Group Room 2 to Room 1, and then ungroup Room 1 from Room 2. Both of those options are inelegant. If I could have some kind of "Sent to" function (or drag and drop a room on another one) that would be great.