$#Zoom > Zoom In
Zooms in on a particular section of your image, displaying it at twice the current scale.
Zoom In changes your CAMCAD crosshairs to a large, square zoom area. Move the zoom area to the section of your drawing that you want to enlarge and click the left mouse button. The area outlined by the zoom window fills the screen.
Each successive Zoom > Zoom In command results in doubling the magnification.