A family of Microsoft word processing software products for creating web, email, and print documents.
I was looking at that.
When I set focus on 1, then do Arrange All, 1 comes at the top and now I have a sequential ordering (1234) from top to bottom.
In general, whatever document I set focus on become first after rearranging, but, except for the case above, I loose the sequential ordering. So I'm still trying to figure out how this works.
Same with Ctrl-F6 to switch between documents.