
What do I mean by set pieces? Think of a section on a Canyon track where you need to be fast -- not because of a jump or a stunt ahead, but because towers (maybe built with the arena blocks) are falling over on the track in front of you and you need to get underneath them before they crush you.
I'd love to be able to create something like this and it would be the only reason I'd bother to learn ManiaScript; I'm really bad at even coming up with ideas for tools and anticipating what a map builder might want... I'd rather build tracks

I suppose this would be similar to mediatracker; but mediatracker doesn't affect the gameplay except by influencing the player's perception.