I'm sorry.. It's a bit difficult for me to explain it the right way in English ;-)
As you can see in my screenshot one can change the order of downloads (and Categories have this function, too). Now, when I look at my User Groups of jDownloads in the backend of Joomla, they are sorted by their ID. I would like to sort them by name for example or (if possible) with this sorting function.
Hope this helps :-)