Just a simple suggestion for a cool feature. When making a Value Layer animation, you can set 2 speeds (Min and Max) in MS and select another animation to control the speed of. You would also be able to set certain sections of the Value Layer to trigger other animations. (EG: You could reserve 0-49 on the slider activates the 1st animation, 50-75 activates a 2nd animation, and 76-100 doesn't play any animation.)

EG1: A Value Layer could control the speed of your tail animation, meaning you can have said animation speed up to express joy.

EG2: A Value Layer could be set so the values 0-9 activates a neutral animation, 10-19 activates an agitated expression, 20-29 activates an angry expression, ETC

It would also be nice for OSC features, such as using a heart monitor to control the speed of a heart on your Avatars chest, making it beat in line with yours.