Superimpose rendering between two cameras?

Hello all. Just wondering if there is a way to superimpose the render of two CM cameras on top of each other? I figure a render texture could be used with a scaling alpha. Is this the best way to accomplish something like this? Essentially I want to fade to another part of the scene with the fade being the actual new location on the scene and wasn't sure it CM had this already built in somewhere - Appreciate the time.