Pattern  Box 

   The Color Box allows you to change the pattern of the boundary of 
 objects and also their Fill  patterns. It includes a pattern display box 
and a pop-up menu that is activated when you click and on the   
 downward facing arrowhead to the right of the pattern display box. 
 Drag down to the desired pattern and then release. The  boundary of 
 the object is changed to the selected pattern, and that pattern is 
 displayed in the pattern display box.    
 Note :   

Pressing  the Shift button changes the Fill Pattern.