Still dinking around with the revision thing. I haven found a way to do an unpublished revision on an existing post. You can abandon it, but you don’t get the revision indicator and will ask of you want to restore when you edit it again, but that’s too risky.
So what is the exact procedure for creating the revision?
The procedure is to make a new post, then just click on the site button at the top next to the arrow. But as I mentioned, this doesn’t really work on an already published post.