Wouldn't be bad idea to pinch Woods favourite folder while you are at it...
Then turn the L button into a shift key as B already goes up a directory and you don't need two buttons which perform the same function, then have shift-shortcuts on all the buttons.
I was thinking:
L+up = enable cheats for this game
L+down = disable cheats for this game
L+left = enable soft reset for this game
L+right = disable soft reset for this game
L+start = Boot Slot-2
L+select = show hidden files
L+X = Copy highlighted ROM to favourites
L+Y = Settings
L+A = Cheats
L+B = Launch shortcut which is in the root menu
If you view some of these intros on Venom's releases, you probably need to do one of those with the credits. Also add a Credits entry to the start menu.
Then L + R = Credits.