I'm rigging a tripod from War of the Worlds, as you can see from the image the set up is the upper leg is attached to the body, the lower leg to the upper, and a piston from the body to the lower leg. Is there any way to attach the bone for the piston (which starts at the body) to the lower leg bone. I had thought that maybe the 'Group' tool could be used, but as I'm still pretty new to this, I'm a little unsure as to how the 'Group tool works.