Thanks for checking it out. Feel free to rip it apart and use whatever parts are useful. I'd love to hear any suggestions for improvements.
I found an issue at rehearsal yesterday where each time anyone changed their sound status (mute/unmute), everyone flashed on the screen. I wasn't passing one of the values through a "Changed Value" actor. Now I remember why I put those in there. I uploaded a new version of the izzy file this morning in case anyone had the version from yesterday and cares about using audio status to trigger visible/hidden for each participant.