Cant Find Blend/Mix Displacement Map.

[Daniel_Ray]

Is this possible? I see blend normal map.

[vladimir.nedev]

I don't think a separate blend texture specific to displacement is needed.
In the shader tree you can use the layer opacity, blend mode and layer masks to blend between several textures with the Displacement effect.
In the Schematic you can use Modo's Color Blend node or the V-Ray Layered texture.

Greetings,
Vladimir Nedev