The Insert a generic pattern into an area by selecting the boundary tool allows you to select an entity that has been drawn on the page (a ‘closed polyline’, ‘rectangle’, ‘circle’ or other closed entity on the drawing) as the bounding edge for the section pattern. The pattern is selected, and the scale and rotation set and then a line of the bounding entity (e.g., circle) is selected by clicking. Once the entity to be filled has been highlighted, right clicking will fill the area in with the selected pattern.