Working with Solid Models and Weldments - Autodesk Inventor 2010: No Experience Required - page 195

4. Drag the fence for the detail view over the section view, as shown in
Figure 4.44. Your fi rst click will be the center of the circle.
FIGURE 4.44 Defining the detail view boundary can be done in
different ways.
5. As soon as you click the radius of the fence, a preview of the detail
view appeaser. Place it to the right of the section view. See Figure 4.45.
FIGURE 4.45 Placing the detail view in the drawing