For example:
MADesigns HAIR Joey
> MADesigns HAIR Black ~ Joey
>> MADesigns HAIR Black - Sniny Black ~ Joey
>> MADesigns HAIR Black - Natural Black ~ Joey
Main folder is at the top, all folders underneath are subfolders.
SL currently does not allow you to copy Main Folder with subfolders in it (containing items or not).
This feature would save a lot of time as you would not have to copy and paste each folder name and create subfolders manually for every product, but reuse "folder template" and just add name at the end.