As in topic. How to attach a sword to have it be influenced by two bones. Not off course in the same time. I was fighting with "child-of" constraint, but with no luck. Well it works, but if I was in need to change bone influence form pelvis to left hand, it just fly away somewhere, so the transition wasn't seamless as I was expecting. I really don't have any idea on how to do this. I was experimenting a lot.
Basically Sword bone must follow pelvis bone, when it's not used, and need to follow hand bone, when the animation need it. Anyone, because it's driving Me crazy. It can even be via payed addon, anything.