Streamline Animation Building for Similar Characters?

So I followed this excellent tutorial for animating my main player character in a top-down RPG game: http://michaelcummings.net/mathoms/creating-2d-animated-sprites-using-unity-4.3

But now I have to animate many different NPC characters, all the same size and same spritesheet format as the one I just did. Would I have to go through all those steps again or is there a faster way, perhaps by copying the generated files and renaming some things?