How would I hold a prop, like a sword with 2 hands? Both hands have overlays but if I try to move the overlay of the right hand in front of the sword, it passes over the body when I animate. But when I move the sword back then it goes behind the body and out of the left hand.
Draw both hands on the sword and connect them to one wrist or the other. (which ever one makes animation easier.) Then hide the arm with no wrist behind the sword.