C3D 2010 - This seems like it would be a simple/useful task and someone else must have run into this . . . Is there a way to create a grading object (block?) with multiple 3dpolylines and/or feature lines so that I can stamp this object over my layout, assign elevations to the z value, and create my surface? My 3dpolylines would have multiple elevations relative to zero. Using blocks as drawing objects for a surface doesn’t seem to pick up the elevations of the 3dpolylines inside the block, just the elevation of the block itself. So far blocking them out then exploding them seem to work but I am looking for something a little easier to edit incase the footprint changes. Thanks.