So I'm trying to have two smoke domains in one shot. I have a fire on the first layer and the explosion on the second. I add in the Render Layers tab another render layers. I want the second layer to be transparent, so I disable the sky option layer. I set under the layer tab the Scene and Layer the second one, and the first Render Layers is the first layer for both options. But now it's duplicating my settings to the other Render Layers. Anything I can do? Thanks!