Aviticus, I understand what you are saying, but that's not how the Material Lab works. The texture libraries are FULL, 4-channel (even if some are empty) Materials. The channels INSIDE of the Material Lab are just that, channels. They have their own libraries, either the fractal (DTE) library, or an image-based library. SO, you cannot blend those two materials in as simple a fashion as you suggest. You must select the channels from each that are important, and insert them into your new Material, and blend them with a third channel to affect the slope/altitude sensitivity.... More on this topic in a bit...