When trying to add additional hierarchical links via the "part of"/"contains" facility I am not able to save changes. For example I wanted to highlight that Lake Kariba is part of both Zimbabwe and Zambia, but I do not get a save link, I can only deleted what I just gave in.
Actually, sometimes it works, and sometimes it doesn't. I was able to list a few "part of" hierarchies later this afternoon, but now I am not able to save hierarchy changes for the new item "Hohe Tauern National Park" (id 7932506). When I am not able to see the "part of" save but I cannot either see it in "contains".