Although you can listen for breakout room events, programmatically moving participants to different breakout rooms, for example, is currently not supported. This is because the Zoom API does not have access to in-meeting controls. Instead, the Zoom API is intended for Pre and Post-meeting configuration. So you can pre-assign and re-assign breakout room participants before the meeting start, but not during. However, I can see the value programmatically moving participants would add to the developer experience. If you would like this feature to be considered for a future release, please feel welcome to submit your use case as feedback here: https://zoom.us/feed.
Currently, it is not possible to assign users (using username or user id) who don’t have registered zoom accounts.
Regards,
Donte