You create an Out of Bounds area by "drawing" the bounding polygon.

1. Click the Create Out Of Bounds button
2. Click the corner points that define the shape of the Out of Bounds area.
3. End the operation by double clicking the left mouse button, pressing the Esc key, or clicking the right mouse button.

Change the properties (hatching and boundary line) by right clicking on the Out of Bounds area, then selecting the Properties menu item.