Where?
You can not. I am sorry. Source That is ingame. However, on the 2nd floor of the Pokemon Center, you can trade your Pokemon with other people (a cable connecting the two GameBoys is required, though)
How to change your username How to add a user avatar Why was my post hidden? The points system Question etiquette Flags vs Downvotes Anime FAQ
Type a Pokemon name, type, move or ability to see instant results.