chat breakout room

Hello,

is it possible to create different breakout rooms and chat to the members of e.g. room 2 about a subject and at the same time to chat to the members of another breakout  room (e.g room 5) something different - in the way that the people form room 5 can't read the messages to room 2 and vice versa? That would be like group chat from main to 2 and from main to 5. Numbers are examples, i managed up to 14 rooms in the past but without room-chat...

Thanks,

jensili