Collapse the list controller track:
1 Continue from before, or open shake_and_walk_finished.max.
2 If you open the file, select the Bip01 Spine object in the viewport, open
the Motion panel, and expand the Assign Controller rollout.
3 In the Assign Controller window, highlight Biped SubAnim and then
right-click.
4 Choose Properties from the right-click menu.
The SubAnim Property dialog appears.
5 In the Enable options, turn off Position List and Scale List, so the Rotation
List is the only one active.
6 In the Collapse options, turn off Position, and turn on Rotation List,
Don't Delete, and Per Frame.
Using Controllers with Biped | 837