When a member uploads their first image to members category, a folder is automatically be created for them, and the name of the folder is the username. Allright
Because users can have some different interest, they want to organize their pictures in sub-galleries (holydays, children, pets, car ... want you want). I cannot find how then can create sub galleries INSIDE their main gallery. If I allow Members Group to create categories, they can create them at the Members category root, that is not interesting.
When a member that is allowed to create categories want to do, when vBgallery ask for choosing parent category, he cannot choose his own folder...
You need to edit the Members Category and turn on the option to allow sub-categories to be created, then it will show up in the list. If they create a category with the Members Category as the parent it will show up under thier username.
(I saw that you just registered on my site; however, only paying members can create their own categories, so you won't be able to do it yourself. You can see from my example above where I have many sub-categories that show up under my username.)