Click the Zone Properties button
in the Image toolbar and select the zone type and content for the
zone you are about to draw.
Click the Draw Irregular Zones button
in the Image toolbar.
The mouse pointer in the image view becomes a drawing tool.
Position the drawing tool where you want to start drawing the first side of the zone.
Click the mouse button once.
Drag the drawing tool to form the first side of your zone.
Click the mouse button when you have drawn the desired line length.
Draw a perpendicular line in either direction to form the next side of the zone.
Repeat these steps to finish drawing each side of your zone.
NOTE: You will not be allowed to draw a line if it constitutes a restricted shape. U-shaped zones and upside down U-shaped zones are restricted shapes.