Most of the changes you make with EDF involve changing information in memory. You do this simply by typing over the information shown on the screen with the information you want used instead. You can change any area where the cursor stops when you use the tab keys, except for the menu area at the bottom.
When you change the screen, you must observe the following rules:
If no label value is specified on a HANDLE CONDITION command, EDF displays the condition name alone without the parentheses.
When you overtype a field representing a data area in your program, the change is made directly in application program storage and is permanent. However, if you change a field that represents a constant (a program literal), program storage is not changed, because this may affect other parts of the program that use the same constant or other tasks using the program. The command is executed with the changed data, but when the command is displayed after processing, the original argument values reappear. For example, suppose you are testing a program containing a command coded:
EXEC CICS SEND MAP(‘MENU’) END-EXEC.
If you change the name MENU to MENU2 under EDF before executing the command, the map actually used is MENU2, but the map displayed on the response is MENU. (You can use the "previous display" key to verify the map name you used.) If you process the same command more than once, you must enter this type of change each time.
The response of EDF to any keyboard entry follows the rules listed below, in the order shown: