Spine Editor Guide - Views (Graph) - old
0:08 Ghosting View
0:43 Axes
1:34 Curve Type
1:54 Linear
2:12 Bezier
3:25 Stepped
4:01 Splitting
4:35 Multiple Selection
5:13 Presets
Accompanying Spine User Guide article:
http://esotericsoftware.com/spine-graph