If by edit you mean chnging how many battles you've won, Pokemon Contests, Battle Tower stuff, etc, you can either go on to GameFaqs.com and check the guides for codes (those guides are at the bottom of the FAQ secyion for Ruby/Sapphire [both have the same guides, no difference] and they have the codes) or you could use a Pokemon Calculator to get more specific results.
XYZMAN's Calculator can do that, There's a link to a site that lets you download it somewhere in my signature. It makes codes for GSA, PARv.3, VBA, CBA, and I think there's more but I can't remember.
Or if you don't want to cheat, spend about an houring winning through Battl Tower, beating your friends in battles/contests, making PokeBlocks, and umm..what else is there?