How setup animation on HumanEntity with Geometry/Skin custom ?

Hello ! I wanted to know how to launch an animation created via BlockBench on an entity with a custom geometry ?

 

Do you have example?

 

Dude. That's belong to client, you can't use it as plugin now

 

I saw that on few servers so I guess you can.

 

Resource packs can modify animations of existing entities, but not human entities with custom skins