Is it possible to change all properties of an instance to another?

So basically what I mean by this, is what if I have an instance with a ton of properties, how can I change all of the properties to that of another instance?

That confused myself, so I will just say what I’m trying to do.
I want to change all of the properties of a facial controls instance to the same properties of another facial controls instance, so I don’t have to use the animation editor, and without it being tedious using scripts.

Oh yeah edit: this is for tween service

I may be completely wrong, but are you unable to just clone them?

My bad, I forgot to mention I’m going to be using tween service.

IIRC you can’t change, read, or modify FaceControls during runtime. They can only be modified in Studio with a plugin or during edit mode.

crap, I just learned that… bruh oh well