Symbol states for visual / animation

I’m really liking symbols. Some of the things I’d like to do involve changing the state of symbols or triggering animations based on events (mouse event, timeline event). I get that a lot can be done using timelines. And these may well be exactly what I’m looking for. Just seems a little awkward managing visual states through timelines.

Timelines are currently the best way to do this. You can always use instant transitions if you don’t want any animations.