Make Linked Element a Local Copy
When you use an element on more than one diagram, you drag the element from the Project Browser and drop it onto the diagram either as a link to the original element or as a separate instance or copy of the original element. Subsequently, you might decide to change a link to the element into a new object, as a local copy of the element in the same Package as the diagram. You can do this very quickly and simply by selecting a menu option.
Access On diagram, right-click element link | Convert Linked Element to Local Copy