By default, the horizontal ruler is displayed in the editor. You can specify whether to display it or not as follows:
               	 
            
 
            	 
             
               		
               - Click 
                  		  Window > Preferences > Micro Focus > PL/I > Editor. 
                  		
               
- Enable or disable the 
                  		  Show horizontal ruler check box as required. 
                  		
               
- Click 
                  		  OK.