How to edit my player? Before Rookie Showcase?

So i kn ow how to use Cheat engine to edit the SP but i want to be able to edit my player before the rookie showcase so i can get the number 1 spot easily!! i have downloaded Young Kobe and he even has signature skills so i know is possible but how?

Hey guys so i already fix my problem i downloaded the turbo trainer and it worked for perfection.... but i used the LBJ signature and know they keep calling me Lebron.. how can i change this?