A possible JJ2+ feature called "Mass Trigger" fell into my head.
Here it is:



Of course, "Area ID" could be any unused event instead. I have no idea whether this is actually possible or not. I imagine that it would at least be desirable to make the participating 4x1 data blocks "unique" in JCS, e.g. by creating some single frame animations.

I like this idea because:

- It would allow for great versatility within a level without dozens of cumbersome animations and trigger scenery events.
- It would probably work on flipped and animating tiles.
- An extra property in the event could specify a layer number, allowing for (mass) triggers on layers other than 4.

I have some more ideas, but I'm too sleepy to reproduce them right now.