I have continue investigating the way to create what I need, but I always face a wall.
I’ve tried the method mentioned in this post and I thought it worked because in the Windows 10 3d viewer it showed all instanced objects sharing source blendshape animation. But then I’ve tested it in Snadbox and even and only first instance has the blendshape weights animated.
I thought all instances would have the blenshape animated because, in MAYA at least, deformations happen in the shape node, not in the transform one, so if something happens to the shape, all share the same.
So, the instances have the blendshape, but only the first one is animated.
Is that a bug or something?