Alongside the Instance and Synced variables, it would be nice if we had a Persistent Instance variable type. Ideally, this would be able to be accessed in any of the room's subrooms by using the same name and when the player rejoins the room its value would be restored to what it was when they last left the room.
In Circuits V1, our current solution for persistence is to use leaderboard stats, but it would be great to see legitimate persistence support.