sorry but I fail to see how your material is procedural if you have to paint the layers by hand. procedural would mean you don’t paint anything at all.
and the HeightBlended textures from the link you provided is just a way to improve the blending between the existing painted layers, which at this point is irrelevant.
so let me try to rephrase it again: I want to have different textures without painting any layers at all (like my pictures already show - there are no layers painted), so that when I actually use painted layers later, every layer already contains multiple textures. in short, I only paint 2 layers to see 8 textures
maybe the part you don’t get is, that I am not importing the layers from anywhere. all I got from WM was the heightmap and the rest I’m generating in my shader, like in the Stylized Showcase