players 13+exists and i know you can can place units of them on a map but can you set player 13 to human?
no, if you have SF you can see you cant change anything past p12 anyways.
im not realy sure since i dont have a very advanced editor. But i would think so...
NOTE:
um... There cant be more than 8 human players playing in the game though.
Players above Player 8 cannot be set to Human/used as a Human Player slot.