In Contribute, I was trying to figure out what the "Save" and "Save As" options
under the file menu do, since no matter what I do on the site, they are always
grayed out. There must be some state where they are active. I wanted to see how
they differ from "Publish" and "Save for Later". Anyone ever use these options?

I've tried the following:
-- When just browsing
-- When editing a page
-- After starting a new page
-- When editing a page that was saved as a draft