I happened upon Novel with humans travelling to a distant planet becoming super-intelligent, which is at one end of a small duplicate chain. I was going to simply edit the ultimate parent in, so as to avoid having to reopen, then close, but that option doesn't seem to be present. Is this because it's an older question? Or was the ability to set multiple duplicate targets removed?
Sorry for the lack of hand-drawn arrows. Choosing to edit the question just lets me edit the text and tags.