Hi Hirk my fault, I was confused. The reason is because MW Auto Material doesn’t expose the paintable layers by default, it uses an automatic system based on landscape slope and height blending, not manual layer painting.
MAWI Video
Apologies for the confusion. I’m now looking for a way to manually modify it
Update:
Bad news. You can’t modify the layers.
The only thing you can do is enter the material and modify the parameters with what comes.
Here’s another video I found that discusses the topic:
