That is so utterly sweet. Not only that, all treasure chest combos can be selected to have flag 10 on them making it so much faster to place, not to mention flag stacking. Imagine water combos that have raft flag set to inherient, but a secret combo flag placed on top so a toggle switch could allow for triggered raft combo branches. You could finally create a proper mine cart area, except of course for the raft sprite being outdated.