The bottom half of the program window is the 3D drawing view in the default split view. Use the toolbar along the top to perform different actions such as zooming, selecting objects, and much more.

It can sometimes be an advantage to use one view at a time as this gives you more space to design. You can choose to view the whole drawing area in 3D by clicking 3D in the View Switcher at the bottom right corner of CET. You can also choose to open a separate 3D view.

The 3D view of the drawing area

The Navigation bar enables you to maneuver in the 3D view and is especially useful should you use a touch pad instead of a mouse (although this is not recommended). The Navigation bar is disabled by default but can be enabled from the Views tab in the Control Panel.

The navigation bar