Have the current directory 'stick' to top of folders view when it is not visible (for long lists of files)

At the moment, if you have enough files in a directory you can no longer see the folder you and currently looking at files in. It would be nice if the current directory name stayed stuck to the top of the folder viewer while you scrolled around. Sort of like on websites whose nav bars stay at the top of the screen when you scroll down the page.