Can't paint my lanscape

In the manual https://docs.unrealengine.com/latest/INT/Engine/Landscape/QuickStart/5/index.html it’s written that in the paint mode I can see three inputs labeled Soil, Grass, and Snow.

But I can’t see anything. That’s why I can’t paint my landscape.
Can’t understad, what’s wrong.
UE 4.5.1

You have to create a landscape material with landscape slot nodes, it is explained in this video:


Hope it helps!

It helped, thanks