Use Balance Factor:1 On the Track Selection rollout, click the Body Horizontal button.2 In the Key Info rollout, expand the Body expansion bar so you can see
the Body parameters. Then set Balance Factor to 0.
The Balance Factor is available because this file contains a keyframe on
the Body Horizontal track at frame 0.TIPMany parameter settings will not be available unless you have a key set
on a particular track. If a parameter is unavailable, click Set Key in Key Info
rollout and see if it becomes available.3 Move to frame 15, then turn on Auto Key mode.4 Select Bip01 Spine object (the first, or lowest, spine object).5 Use Orbit to see the biped from the side.6 Rotate the spine about the Z-axis.
Notice that the upper body rotates, while the legs stay firmly planted.958 | Chapter 5 Character-Animation Tutorials