Animate the weights of SubAnim controllers:1 Open shake_and_walk_start.max.2 Play the animation.
The biped takes a few steps, then pauses for a moment or two, then walks
on.3 In the Perspective Viewport, select Bip01 Spine, the lowest spine object.4 On the Motion panel, open the Assign Controller rollout.5 In the Assign Controller window, expand the Biped SubAnim so you can
see the list controllers.6 Expand the BipRotationList, and highlight the entry marked Available.832 | Chapter 5 Character-Animation Tutorials