virtual void CopyFrom ( [URigHierarchy](API\Plugins\ControlRig\Rigs\URigHierarchy) * InHierarchy, [FRigBaseElement](API\Plugins\ControlRig\Rigs\FRigBaseElement) * InOther, [URigHierarchy](API\Plugins\ControlRig\Rigs\URigHierarchy) * InOtherHierarchy )