Extrude Face
Extrude any face of a SMesh along a path defined by a Line, Arc, Polyline or Curve. 
Select a facet on the SMesh object.
Select the path defining object.
The extrusion is created.
Extrude any face of a SMesh along a path defined by a Line, Arc, Polyline or Curve. 
Select a facet on the SMesh object.
Select the path defining object.
The extrusion is created.