My sole reason for getting this was so i could edit registration rules in a league i'm managing, but ive just loaded up fmrte and seen that you can't really edit much in a competition, just prize money, subs and reputation, which sucks...but if so that means i won't need to buy a license or is there a way you can edit reg rules? if so can someone help me out

I think you can do that with the oficial editor only

Pre game editor only you can't edit things like that it crashes the game 

Cheers 

Closing answer given 

Cheers