You can show or hide crop regions as needed.
On the View Control Bar, click 
(Show Crop Region or Hide Crop Region).
To show or hide the annotation crop:
- After you show crop regions, if the annotation crop region is hidden, right-click in the drawing area, and click View Properties.
- On the Properties palette, select (or clear) the check box for Annotation Crop.
In the drawing area, select the crop region, and both annotation and model crops display. The interior crop is the model crop, and the exterior crop is the annotation crop.