How to make big npc villages everywhere!! on 1.4

Basically all you have to do is create a new world. Then you click superflat. And then Customize. Then go to presets. in there after where it says village type with no space after village(size=1 distance=0) this will make bigger npc villages and make them closer so they will be every where just about 20 blocks away from each other. Hope this helped bye.