Can I play different music on multiple Google Homes?

[AC Question]

Is there any thoughts on a way to play different music on different Google Homes? I have each Google Home using the same account obviously. But I would like to play music in the kids room at night and something else downstairs in the evening. When I play two different things, it tells me that someone else is using the account. It is pretty frustrating. When you play music on a group, what account does it use? The one that the request was initiated from?

Google needs to get this muitple account thing figured out.