Use this procedure to insert objects, such as doors, windows, curtain wall units, and AEC Polygons, into a door/window assembly cell. Door/window assembly cells can contain these objects when you create infill definitions that use them. 
Tip: After you insert an object in a cell, you can select that object independent of the grid, and access editing options for the object. 
-  Click 

. 
  
- Expand Architectural Objects 
 Door/Window Assembly Styles. 
  
- Select a door/window assembly style. 
 
- Click the Design Rules tab. 
 
- In the left pane, select the grid in which you want to insert objects. 
 
- Click 
 (new cell assignment). A new cell assignment is displayed in the list of cell assignments. 
  
- Right-click the default name, click Rename, and then enter a descriptive name for the assignment. 
 
- Select an infill that uses an object style. 
 
- Specify the cells to contain this object. 
 
- Click OK.