Developing Drawing Strategies: Part 2 - AutoCAD 2011 and AutoCAD LT 2011: No Experience Required - page 188

FiGuRE 5.25 The deck with both handrails
8. Click the Select Objects button found in the upper-right corner of the
Array dialog box, select the outside perimeter line of the deck, and
press ↵ to return to the Array dialog box.
9. After selecting the objects to be arrayed, change the following values
from within the Array dialog box, as shown in Figure 5.26:
FiGuRE 5.26 Using the Array dialog box to specify the offset parameters
for the stairs