Add UVW mapping cube to 3dm model

Hello guys
I struggle a bit. Imported 3D model from Rhino.
After import, have several StaticMeshActors but I cannot find where to add UVW Mapping feature. After double click on specific mesh, there is no option.
Polygon edit plugin is ON.
When I import from 3Dmax and define UVW map in the MAX it works fine, I can see this option in the UE4 mesh editor, but after import from Rhino, this menu in the mesh editor is not available.