Is it possible to "expand" the regional dex instead of giving the national dex in fire red? I mostly mean for the sake of looking at the pokedex.
In other words, I would like to receive the regional dex at the beginning of the game, open it up and see all 386 pokemon slots (or at least have that potential when you fill it) instead of 151. But still use the national dex special as a trigger for all the late-game stuff, even if it doesn't directly add capabilities to your pokedex.
Is this possible?
Several people have done it, so you should be able to find some information or someone who did it.
You could also just give the player the national dex in the beginning, and 'fake' it later.