Where to plug-in displacement textures in the UE5 Material graph

I just stumbled over this question, in 5.5 you can enable this by adding some code in your project/Config/DefaultEngine.ini
Under: [/Script/Engine.RendererSettings]

r.Nanite.AllowTessellation=1
r.Nanite.Tessellation=1

At least that works for a MakeMaterialAttribute nodes.