Custom hero's in multiple maps

I am pretty new to playing with the WE and was wondering if there is any faster way to copy hero's and there abilities between maps. Currently i am using the copy paste idea presented in the tips section. However this is taking forever since i am trying to put the hero's in all the normal maps for playing. I tried to search and didn't come up with anything super helpful. Any help would be greatly appreciated.

Have you tried "Save All Custom Settings" or something similairy named in the Object Editor tab? Saving all custom settings allows you to load them later on in a new map, including units, custom doodads, buffs and everything except imported files. It overwrites everything from the map it's loaded in, though, so it's best to load custom settings first before making the map.