waitingRoomYouTubeVideoId

The id of the YouTube video that should display on the waiting room screen. This can be retrieved from a YouTube video's URL. If the video's URL is https://www.youtube.com/watch?v=2woiLsEG2zo, this value should be 2woiLsEG2zo. The video id defaults to 2woiLsEG2zo when not specified explicitly. Only YouTube videos are supported.