With the "Shell" tool active, the "Construction Method: Detailed", selected and the 3D screen displayed, it should be possible to draw in the Horizontal plane a polyline, with the aide of the pet palette.
With those setting, no matter what I have tried so far, after placing the first point, the pet palette does not appears and I cannot generate the polyline for further development.
Am I missing some selection or key stroke here?
Win 10 Home Premium - AMD Phenom IIX6 1090T Processor 3.20 GHZ 8.00 GB RAM 64-bit Opp. Sys NVIDIA Quadro 4000 AC 22, MEP