Windchill user needs the modify permision to rename object in Windchill across all states.
If the wtobject is forward to released state where the object shouldn't be modified the user can't rename it even a new revision is made because the modify permisiion is not allowd in release state..
In some cases the rename operation is required and only admin or Produkt/Library manager can change the name.
The Idea is to create new permision for rename operation across all states to change NAME.
Customer needs is to rename MPMLInk operations during a change process.