1. Sometimes the new flags such as push 4 forever (or whatever) don't push. Not sure why, it just does sometimes..more info once I test a bit more.
2. I had a tile with a 2ndcset, and when i pushed it, it went back to a normal color whilei was pushing it.
3. A suggestion. With the block trigger flag, there should be a screen flag called something like, "Block Trigger opens Shutters." It makes shutter doors open when the block is pushed onto the flag. This could make them more signifigant in dungeons.