Alright, I am updating the addon with better physics. But I do not know how to do Faceposing.
Also, what do you mean the right hand is just "floating"? I looked at the model multiplte times and never seen the hand "float"

Spike10164, I hate to post this here; but here's the glitch/bug Froissart is speaking of http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=816174653 Also i believe the shoulders are locked in the Square-like appearance because of the model using Player animations and the specific shape the animations cause a model to do.