Attach a mesh with another mesh with shape keys, and get the mesh connected

Hi folks,

I am trying to add realistic eyes to a character generated by the MBLab. Indeed to have realistic eyes I went to get the eyes of the “Digital human” of unreal (cf And I added them to my MBLAB character.
My problem is that the eyes are not attached to the body.
I would like the eyes to be attached to the body or skeleton as much as possible.

Thanks in advance :slight_smile: