With branch filtering, you can apply a DITAVAL file to a subset of
		content in a map, which is used when generating an output to filter that subset according to
		its conditions. 
		
			To insert a ditavalref element: 
 
		- 
				Open the map in the DITA Map view. 
			
- 
                Click the DITA Map
                    view’s Menu button.   The view's pull-down menu appears. 
- 
                Select Show elements. 
                
            
- 
				Lock the map.
			
- 
				Right-click on a valid element in which you want to insert the
					ditavalrefelement and click Insert Ditavalref.
- 
				In the Ditaval dialog
					box, click the DITAVAL file that you want to use and click OK.
			
- 
				Release the map.