When the game generates new fighters, it is my understanding that it gets the fighter images from the Free Pictures section in the database. I have some 4,000 fighter bodies and faces that I have in my pictures folder, and I would like them to randomly appear throughout my playthrough. However, when I try to import to Free Pictures, the only images I can import are from the Default Database's free pictures.
How can I import the fighter images from my pictures folder into Free Pictures?
edit: Additionally, what does "Home Grown" in the area section of the database do?