Given we now have a shiny new SE Meta site for network wide changes it would be great to get a close as duplicate on the other site.
Here's a really good example of a question that should be closed as a duplicate:
https://meta.stackoverflow.com/questions/252281/latex-support-in-so
duplicate of MSE:
(even though the origional probably doesnt belong on SE meta at all)
Links renaming seems to work cross-site, can close as duplicate get relaxed to work cross site (if only for specific meta to general meta)
Shog9 has now closed this question as a duplicate using his mod tools I assume but I certainly couldn't, I get the following error:
The duplicate question must exist on Meta Stack Overflow