I wonder how to do this kind of things! ps: sorry the noob question. i want to download existing mecanin animation and override using the Two Bone IK to override (without deleting all animation clip) but add an override similar to what UMotion do. example: has you can see on UMotion we have Layer of type override to replace animation only the hands! i want to know if somehow i'm able to make the same effect without love or rewrite, delete keyframes from the existing animation.