This is a thing that frustrates me and raises a few unneeded questions:
I find this very odd, I often want to open a file and save it as something else, but in Rhino for Mac there is no “Save As” option. I can Duplicate, or Export, but why no Save As? It really makes no sense to me, and save as is a very normal thing to do even on a mac.
Also if I close a document I can choose to “Revert Changes” Why Revert? Have you already saved the changes? Why not DON’T SAVE? That too is also normal in the Mac world, so why invent something new?