Hand-painted landscape material

Hello! I need help. In this video on 3:23 Blizzard’s artist tell about vertex shding. I’m very like it. How i can do it in UE4 and how i can create landscape materal for same result like in WoW?

I’m read docs, but something wrong, i think.
https://ibb.co/nt9pMF

P.S. sorry for my English.

Hello, just looking for Vertex painting, in YouTube have a lot of tuts about it, like this one:

That’s covered in the basic landscape documentation.

You about this? https://docs.unrealengine.com/latest/INT/Engine/Landscape/Materials/index.html