Rooms and stages lets you model every room, stage, or configuration inside a single venue, then hold and confirm dates against each one independently. A main room and a side stage stop competing for the same calendar line and start acting like what they are: separate bookable spaces with their own avails.
When plans change, so does the show. Rooms and stages lets you move any hold or confirmed date between rooms without rebuilding it, so a shift from the small room to the main stage stays a two-minute update instead of a new event from scratch.