Sort by Simfile Author

I was thinking maybe there be a sorting method to sort by the author of the stepfile.

By incorporating a new entry when creating a stepfile, and maybe save it as a separate file under a new format (.sm5 or something).
This way, instead of having duplicates of simfiles so that you can have a bunch of the simfile author's simfiles under one Group, and also have all of the simfiles in other packs from them.
Cuts down on hard drive space for players and adds something new and awesome for SM5!

The .ssc format already has an author field for each chart. It's for each chart because multiple people can collaborate on a single simfile.
Sorting simfiles by step author might be useful, though most of the packs I play are by single authors so it wouldn't really be useful to me.