use case

[bibleuspro]

So, I downloaded the repo and it seems to work in 2018.1 latest build. 13 I think it is.

I see a cube, a different color is on each side and I see 8 materials. I see a udim script. I however am not really sure if that is it or what is next step. My understanding is udim is supposed to allow high detail of textures, also layering. I see each texture map is numbered but they are not overlapping I assumed that was the purpose of the demo? To overlap 8 textures and use 8 uvs instead of 2x am I missing something?