You chage the options on your PC with NOTEPAD and then use the USB stick. Restart the manager to load your settings from the USB device.
Version 01.07.06 is out - you can update with the [R3] button.
[SELECT]+[O] - MOVE files and folders now works in the file manager. There is an additional option in the .ini file, too.
# game_bg_overlay=1 (0 - do not overlay game PIC1.PNG over user background picture, 1 - overlay)