An interesting functionality extending the standard AutoCAD linetype mechanism is hidden (almost unnoticed) in the DGN Import command. This functionality is available since AutoCAD Civil 3D 2011, plus in all versions of the AutoCAD 2012 family. The DGN import allows to convert and use special linetypes which were otherwise unreachable in AutoCAD. Microstation defines these complex linetype isGo to the original post...