Extruding Shaded Sketch Contours To extrude shaded sketch contours: In sketch mode, click Shaded Sketch Contours (Sketch Toolbar) or Tools > Sketch Settings > Shaded Sketch Contours. Use Shaded Sketch Contours to turn-off the tool. Create a sketch that has multiple sub-contours. Click any sub-contour of the sketch entity and drag it.The whole sketch entity moves. Press Alt and click a shaded area.The Extruded Boss/Base tool appears on the context toolbar. Click Extruded Boss/Base. Set options in the PropertyManager and click .The shaded area is extruded. Parent topicSketching