Making Mini expansion pac mod - HELP!!

Hey all
Ive spent the last months making a new hero for each race in TFT
And i have got them to the stage where they are almost as good as a new hero similar to what you would get in an expansion pack. I need to make a mod that will put these 4 heros in the maps for the game, even 5 or so maps are ok.
Could someone plz tell me if they know how to go about this

OR

Could someone plz tell me how i can add the hero's abilities and triggers to many existing maps.

Thanx heaps guys

Pyro :(

Export your object data, and then import into the new map.

i think he means he wants to do it for every map in the campaign. or like Tales of Ravigation i think its called :S