Use this procedure to specify the hatching of the components of a curtain wall unit style. Curtain wall hatching is displayed only in display representations, such as Plan, that are used in Top view (Plan view) of a drawing. 
-   Click 

 
.  
-  Expand Architectural Objects, and expand Curtain Wall Unit Styles. 
 
-  Select the curtain wall unit style that you want to change. 
 
- Click the Display Properties tab. 
 
-  Select the display representation where you want the changes to appear, and click Style Override. 
 
- Click the Hatching tab. 
 
-  Select a component, and click the setting for Pattern. 
 
-  Specify the hatching for the component: 
| If you want to select …  | 
Then …  | 
| a hatching pattern that is available in the software  | 
select Predefined for Type, and then select a pattern.  | 
| a custom pattern  | 
 select Custom for Type, and then enter the name of the custom pattern. If necessary, click Browse, and navigate to the folder where the custom pattern file is located.  | 
| single hatching  | 
select User-defined for Type, and clear Double Hatch.  | 
| double hatching  | 
select User-defined for Type, and select Double Hatch.  | 
| solid fill  | 
select Solid Fill for Type.  | 
 
  
- Click OK. 
 
-  Click the setting for Scale/Spacing, and enter a value that determines how the selected pattern is repeated. 
 
-  Click the setting for Angle, and enter the angle for the selected pattern. 
 
-  Click the setting for Orientation, and specify how the hatching is oriented: 
| If you want to orient the hatching …  | 
Then …  | 
| to the object, regardless of the object rotation  | 
select Object.  | 
| to the World Coordinate System  | 
select Global.  | 
 
  
- Click OK twice.