Is there a way to turn Jiggle Bones and Chain Bones into Leaf Bones?

Hello, I have a character that has been rigged for a while, and we’ve changed directions on how we’re going to handle dynamics so all the jiggle and chain bones that exist now need to have zero dynamics applied to them. I’ve tried turning dynamics off and increasing stiffness but there are still remnants of jiggle physics in the animations when I bring them into Unreal. My question is: is it possible to just turn these bones into leaf bones, or otherwise completely eliminate the dynamics so that they function like leaf bones?

Is this for the ART tool rigs? I suppose you could always just break connections to those bones’ transform channels before baking.