thanks for your reply.
So should I add bones under the same skeleton tree?
Or should I add a new sketelon tree only for eyes?
I think the first one is more correct, right?
If I add bones here (below “Head” bone) it should work properly without affecting the animation?
What if I would like another solution such as separate the two models?
So I will have a model with the character with no eyes? Then how to attach to the head for correct movement?