Rearrange document tabs

[OKB]

I would like to be able to rearrange the order of the tabs of open documents, and I would like my chosen order to be saved with the workspace. When I am working on a multi-file project, I tend to mentall associate each file with the position of its tab on the screen. It is annoying to have the order change when I close and reopen the workspace. It would be much better if I could set the order and have it not change.