The audience is almost like a character. They "join" the call as a participant. This could be Nat recording her screen with her camera off?
The view alternates to whoever's talking while still being able to see everyone else in smaller pictures. This should happen automatically?
Characters who only chime in sometimes (4-9) could "come and go" or have their cameras off periodically. We can also put a "mute" icon on 3 who's often told to shut up.
Call You're the only one left. Would you like to end the call?
Add a pop-up chat feature (or just the message) for commentary during monologues.
Everyone is on screen, equally sized, during the final monologue (pg. 81).
After the final monologue, everyone leaves one-by-one so their video ends. The only character left is the audience. The mouse moves on-screen to press the "end call" button. The screen goes black and the video is over.