Request: Folders for fits within ship type

[Harudath]

I like to keep old fits, but I also have many different iterations of fits and multiple purposes for the same hull. I have 23 legion fits, for example. I would love to be able to create and name folders (or even a folder tree) to file away old fits and categorise current fits; eg neut legion, logi legion, dps legion, solo legion, etc, etc.