- Start the IMS Database Editor. 
                  		
               
  
               		
               - Apply a segment layout file. 
                  		
               
  
               		
               - In the Layout view, click a field in the 
                  		  Value column. 
                  		
               
  
               		
               - Do one of the following: 
                  		  
                  
 
                     			 
                     - To add data to a blank field, type the data into the field. 
                        			 
                     
  
                     			 
                     - To modify existing data, overtype the data in the field. 
                        			 
                     
  
                     			 
                     - If the data in the field is invalid, you are prompted to initialize it; click 
                        				Yes to initialize the field or 
                        				No to leave it as it is. 
                        			 
                     
  
                     		  
                  
 
                  		
                 
               		
               - When you have finished editing the field, press 
                  		  Enter. 
                  		
               
  
               	 
            
 
            	 
            Note: The following apply when editing formatted field data: 
               		
               
 
                  		  
                  - If you have the 
                     			 Update warning option checked, click 
                     			 Yes to enable data updates. See 
                     			 To configure edit warnings for more information. 
                     		  
                  
  
                  		  
                  - You can undo an edit after pressing Enter and before clicking in a different part of the IMS Database Editor window: Click
                     
                     			 Edit > IMS DB Editor > Undo Segment Edit. 
                     		  
                  
  
                  		  
                  - You can toggle between Insert and Overtype mode by pressing 
                     			 Insert. 
                     		  
                  
  
                  		  
                  - You can cut or copy data to the Windows clipboard and paste in the data somewhere else. 
                     		  
                  
  
                  		  
                  - If you paste text into other editors, nulls are replaced with spaces. 
                     		  
                  
  
                  		  
                  - For fields that are not PIC X fields, you can only select and copy the whole field. You cannot select part of the field and
                     you cannot cut the field.