Base prep action replay code

[GothChipsSenpai]

I remember using a few codes from a while back, one made it so you could access the prep screen/base screen from any chapter, like the very first prologue chapter, and another made it so you could access everything within the prepscreen, does anyone still have that? I'm trying to make it so the MU is whatever class I want them to be. Though if there's a way to hack the game so you can have him be whatever class you want that would be work too.