Make Single User
Makes the selected or all object data-blocks single users, that is, not shared (linked) between other objects in the blend-file.
Additionally, it can also make single-user copies of its dependencies, like meshes, curves, materials, animations...
These actions work on the selected objects, or on all the objects of the scene.
All, Selected Objects
Lets you, in addition to the menu predefined selection, choose the type of data-blocks individually.
Make single user objects.
- Object Data:
Make single user object data.
Make materials local to each data-block.
- Object Animation:
Make the animation of Object Properties data local to each object.
- Object Data Animation:
Make object data (mesh, curve etc.) animation data local to each object.