ToolTip: HLD Edges

Use this function in shaded mode to display visible edges and to dash obscured edges, entities, and flowlines (optional). The Dash Hidden Edges function is one of four edge options (No Edges, All Edges, HLR Edges, and HLD Edges) which are only available when one of the three shaded render modes are active (Flat, Gouraud, and Phong).
 

Shaded Render Phong with Edge Options