[Feature Request] Allow use of "repeat" property for more event types

[Mawntee]

Currently it's only available for AnimateTrack events which is great that it's even there, but I find myself using for loops on path animation events more than anything else.
It would be sick to have it for other events such as AssignPathAnimation, or possibly even some of the animatable Vivify events?

[Fatalution]

Adding to this, v4 beatmap structure allows for the already built-in [repeat] functionality from the box, so to speak...
Maybe, maybe, maybe...?