Waiting Room with Video

Description
I want a waiting Room but with video already started from users and mic off

Which version?
latest

To Reproduce(If applicable)
Steps to reproduce the behavior:
Im trying to implement a custom ui where i can watch 2 screens , the in-meeting screen and another screen where i accept new users to enter but with video enable and mic disable and the host can give them permission to the new users to enter to in-metting screen with the mic enable , Is it Posible to do it??