When I link an object from another file, the visibility, selectability and renderability icons in the outliner are greyed out and inoperable. Yet I can control these functions by right-clicking in the outliner or by using hotkeys.
This behavior is different from linking groups where the outliner buttons are fully functional.
Is there some rationale for this partial functionality in the outliner for linked objects (as opposed to linked groups)? I.e. bug or feature?
(Blender 2.77a, Windows 10 64-bit)