There’s this project I’ve been working on for the past week. Animation track 2!
It’s exactly what you think it is, a custom animation track that uses KeyframeSequences instead of Animations. It uses Motor6Ds inside the R15 rig, whose Transform property is tweened using Boattween.
Here’s an example of its current state:
Normal Roblox animation track playback (done via Animation Editor plugin):
https://gyazo.com/e5b6891a33db6268289fb1604196826d
Animation Track 2 playback:
https://gyazo.com/3b5ffd54fb3dfe8e7f16e1606cfe3beb