Hello, thanks for your fast and detailed response.
I kinda get to understand the thing a little bit. Seems like it relates to the concept of modular skeletal mesh component?
(Modular Characters in Unreal Engine | Unreal Engine 5.0 Documentation)
As for Question A2, so if we seperate head skeletal mesh with body skeletal mesh, then they have to use two seperate animation blueprint ? I searched about the combing head and body animation of metahuman on youtube and found them talking about Copy Pose from Mesh node. But when I downloaded sever metahuman I found that there is no such setup in my metahuman’s face’s animation blueprint.
There is only ARKit script in the event graph.