How to create differents lights in world composition

Hello, i am creating a game with 4 maps using world composition, i need that every map have a different mood. So i am trying to use directional lights, i create a dark map, but now i need put sun lights restrict to my happy map. My dark map has blue directional lights and its shining in my happy map, i dont want this.
I have a postprocessing too, and i want 1 post processing restrict for every map.