Disconnect all players in all rooms

Hi,
I wanted to know if it was possible to disconnect all players in all rooms from the lobby or from outside the app?
What I want to do is have a group of people playing to test the game but I want to ensure that they will be able to connect to the servers and be sure the max available CCUs won't be reached. So basically what I would do is disconnect all players just before this group test the game, but I don't know if that can be done.

Thanks!