Change PlayerTTL after room is created

Currently, we have a 12 minute TTL to allow a broad amount of time to reconnect.

However, when we first load the game, if someone disconnects, everyone is frozen for 12 minutes while it waits for that player. Sure, we could just kick him at OnPhotonChangeStatus(PhotonPlayer) (sp?), but then he couldn't reconnect.

How can we start the game with 2-minute PlayerTtl, then LATER change to a 12 minutes?

I can't see to find a way to do it outside of RoomOptions before making a game.