Um, okay, so I decided to add one Grippable component, that is, Grippable Procedural Mesh Component. And, after a day of trial and error (I am definitely NOT a C++ programmer) I succeeded. Also added a copy procedural mesh to grippable procedural mesh so you can slice the proc mesh then copy the other half to grippable proc mesh.
I have no idea how to add that to the repository, so if anyone wants to help me I’d be glad.