This is an invaluable tool for Blender folks who do morphing for CC.
Add-on allows to transfer the *shape* of one object (or group of vertices) to another object.
And what's most important, it leaves the topology completely intact (number of faces, vertex order, etc), so CC does not *complain*, when I import it back as a Morph Slider.
Can't even think of all the possibilities, this add-on can be used for...
It has a few hiccups here and there, but overall it's great and it's also FREE (you can send a payment to dev if you wish, he certainly deserves it).

https://www.blendernation.com/2019/12/27/add-on-mesh-data-transfer/