• Editor
  • There's no "recording" mouse move to bone that make much easier to animating

I wish i have it
And smoothing system

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We've considered this, where you "perform" by moving the mouse and that translation gets turned into keys. It's useful for some things, but somewhat limited.

In 4.2 you can use physics to give you nice movement with few keys.

I also suggest learning how the favor tool works. The workflow is very good:
http://esotericsoftware.com/spine-graph#Favor