Q: When I Rotate the Body actor of my figure, the figure orbits some point in the scene, instead of spinning round the central axis of the figure. Why?

A: The figure's sub-root actor (usually the hip in most figures) is parented to the Body actor. The Body has its own center of rotation (its "origin"). When you load the original figure in its default pose, the origin of the sub-root (hip) will be at, or near, the origin of the Body. If you translate the sub-root, you are moving it away from the origin of the Body actor. Think of the Body as an invisible prop to which the sub-root (hip) is parented.