I accidentally came across a cheat menu when I clicked on F11, but I also started the vanilla version and it doesn't exist. It would be nice to remove it from the maelstrom version or include it as an option.
Personally when I see a cheat menu, I lose interest in the game (or they're well hidden like in GTA which is less of a problem since you have to search for them and perform a keystroke combination, and it also disables the trophies).
I tried this but it also removes the F10 menu :
#define MOD_BETTATESTMODE "Off"