I think this would be useful for users that prefer to download one file at a time and those who download multiple files at a time. I'd like to be able to click on a file and move it in the download box and arrange them in the order I'd like them to be downloaded in. I know this can be accomplished by pausing the downloads I don't want downloaded right away, then coming back in and resuming them, but it becomes tedious constantly checking back. It would be nice to be able to arrange them once and forget.