Possibility to give predetermined stats to Pokemon?

I wanna know how to give certain Pokemon the player receives to have different stats and moves. Help would be very appreciated.

It's easy really. All you have to do is create the pokemon BEFORE you hand it to them.
Here's a script excerpt from mine, my little test Kecleon.

poke=PokeBattle_Pokemon.new(:KECLEON,20,$Trainer)
poke.setAbility(2)
poke.pbLearnMove(:ABSORB)
poke.pbLearnMove(:BUBBLE)
poke.pbLearnMove(:HEARTPOWER)
poke.pbLearnMove(:SOULPOWER)
pbAddPokemon(poke)

Of course, just replace ability, and the moveset with one that actually makes sense in your game.
Other modifications described in detail here: https://pokemonessentials.wikia.com/wiki/Editing_a_Pokémon

Also, what do you mean by stats? Do you want to change EVs or create a pokemon with different Base Stats entirely? O.o

Lol nah it's cool. You answered my question very thoroughly, thanks a bunch.