hi lars
thanks for that, I now understand what the Display References are for and that's exactly what i'm after
however, i'm selecting 3 reference lines now which are all 3D polylines but for some reason the results are still a bit hit and miss.......only displaying 1 of the Reference lines in the results preview window if any and results from plotting have most of the sections missing the reference line information
I can email a dwg file if that would help
steve b