- In the 
                  		  Tree pane under 
                  		  Regions, select the region with the resource definition you want to edit. 
                  		
               
- In the 
                  		  Actions pane, click 
                  		  Edit CICS Resources. 
                  		  
                  The Resource Definitions Editor opens in the 
                     			 Results pane. 
                     		  
                   
To open a resource definition file which is not attached to a region, or a resource definition file which is deployed to the
               cross-region database. 
               	 
            
 
            	 
             
               		
               - In the 
                  		  Tree pane, under 
                  		  Configuration Editors, select 
                  		  CICS Resources to open the CICS Resources File Editor in the 
                  		  Results pane. 
                  		
               
- Choose 
                  		   to locate and open the resource definition. You can open a file from the file system, or from a cross-region database running
                  on a network SQL server. 
                  		
               
- Use the CICS Resources File Editor to edit the file. 
                  		
               
- Click 
                  		  Save to save the file. 
                  		  
                  Note: Restart any regions that use the resource definition for changes to take effect.