Bip01 is automatically selected.2 At frame 0, click Set Key for Bip01.
This creates a start key for the center of mass.3 Move the time slider to frame 15.
4 In the Left viewport, use the Move Transform gizmo to move the center
of mass so the torso shifts forward, and then set another key.
NOTE Because the center of mass is the root node, you can use only Set
Key, not the specialized IK keys.5 Use the Move Transform gizmo to move the center of mass down a little,
so the left knee bends slightly, then set another key.
The left leg bends automatically as the center of mass moves down.
Animating a Freeform Walk Cycle | 805