"Object: Make duplicates real" to object menu.

This feature changes a linked objects and object groups to a local objects that can be edited. It already is in Blender, but I have no idea where it is. (except if I find it from SPACE BAR -> search)

I was not able to find this one feature from anywhere and I was clicking the "Make local" thing without any visible change. I still don't know what that "Make local" thing is supposed to do for linked groups. And was confused cause nothing happened.

So I went to Blenders bug tracker and found out that someone else had the same problem. There he was told that "make duplicates real" does what we were looking for. I think this should be in object menu also so people would even know this feature exists.