Breakout Rooms: Duration and closing in XXX

In Breakout rooms these are often set for a specific duration. It would be great to set a duration up in the assignment section for the rooms and then have it be a visible countdown for the participants so that the facilitator and participants can manage their time in the rooms more effectively. Also it would be very helpful to have the option for hosts to close the rooms with a 1 min countdown to allow people to wrap up - Much like competitive platforms the countdown should be obviously visible to all participants.