How to work with Wix Live Video

Hi,
I am organising events (meetings) with Wix Live Video and could not find much information on creating code around this.
I would like to know if there is a way to identify who is connected to a live video and generate actions on connexion or disconnexion.
Also, how many live videos is it possible to open simultaneously ? For example I would like to be able to assist a meeting for a few minutes then let it go on without me, then join another meeting and so on.
Thanks