SetBoneRotation, SetBoneLocation
under review
GTNardy
Unfortunately this is not that simple, Unreal expose methods for that but the Component is a "PoseableComponent" which is a component used strictly for that, and Character, Vehicle, Weapon use "SkeletalMeshComponent" which is different
https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Components/PoseableMesh/SetBoneRotationbyName/
NegativeName
GTNardy: Control Rig Component has a "SetBoneTransform" / "SetInitialBoneTransform" function, maybe you can check how it works under the hood.
GTNardy
under review