The foot control points (or the heels):
leftFootPoint
rightFootPoint
If you have two control points for each foot, you may use a feedback node to limit the angle of the foot.
The knee control points:
leftKneePoint
rightKneePoint
The hip control points:
leftOverlegPoint or
leftBackPoint or
backPoint
rightOverlegPoint or
rightBackPoint or
backPoint
Use "backPoint" if building a Stickman figure.