Unpublish post / put back to Draft button

It would be really great for the users to have the option to un-publish a post. (put the post back into the draft)

On the new post submission, there’s an option to save as draft. But after that, there’s no way to simply de-list a post without having to trash it.

So just like the edit or trash button, an un-publish button could be really handy for those who just want to temporarily take down their listing.