there are 3 total, there all listed on my web site, but be warned (again):
MESSING WITH THE HIDDEN MENUES CAN (AND PROBABLY WILL) KILL YOUR CLASSPAD IF YOU DONT KNOW WHAT YOUR DOING, AND IF YOUR NOT A CASIO EMPLOYEE THEN YOU DONT QUALIFY.
mess with them at your own risk, but i hope for your sake your warenty hasnt run out. I havent touched them myself since about a week after i discovered them.
all the CFX calcs have a secret menu that you can access by holding:

F6' />+
![[Ab/c]](/dot/public/style_emoticons/default/abc.jpg)
+[On/Off], these arent nearly as dangerous as the CP menu, but you may clear your RAM.