Hello everyone,
This is wavy coming around once in a blue moon with these intriguing questions 
Does the gltf system support cloning morphed mesh and still retain the shape keys, I understand that it’s not possible to clone skinned mesh at this time.
Here is what I have been doing:
@Deltakosh is working on a way to clone glTF loaded asset containers which will cover all the animation groups, skinning, morph targets, etc. Make sure we can clone an asset container · Issue #6358 · BabylonJS/Babylon.js · GitHub
Awesome!!!
Will be in next nightly 
I will also post an announcement to present the feature
So excited!