The Modify tools - Introduction to AutoCAD 2011: 2D and 3D Design - page 108

Fig. 5.21 Second example - Array - the Pick Center point button
4. The dialog reappears. Click its Preview button. The array appears
and the command line shows:
Pick or press Esc to return to drawing or
<Right-click to accept drawing>:
5. If satisfi ed right-click . If not, press the Esc key and make revisions to
the Array dialog fi elds as necessary.
The resulting array is shown in Fig. 5.22 .
centre point
of array
Fig. 5.22 Second example - Array