Yafaray nodes


I´m studying Yafaray and I´ve tried to access its material nodes, but there´s noting in Node Editor to show them… The option “Use nodes” is missing, as the material buton (see the image). How can I connect textures and use bump in Yafaray?

I´m using Yafaray 0.1.5 in Blender 2.70.


Yafaray doesnt support nodes yet but bump is texture property.