Change linked object to appended? I have linked maybe 20 objects into one blender file, but now I want to change it to appended objects. I want to use this blender file in Unity, and it seems the objects get broken if I include linked objects.

Is there a way to change linked objects into appended objects, or any way to separate them from the original file, or to import Unity in any better way?
There is a operator accessible from the 3D view header Object > Make Local > All  (or L) that will make the linked objects local copies.  *Do note that this is not undoable.*  



The difference between the options is not stated in the manual.


Selected objects Only make the object local, you can move, scale and add modifiers, but all the mesh data, materials, etc stays linked to the source file. (you can not enter edit mode.)
All copies everything and there are no links for any objects. All linked objects are now editable.