1.$ DELETE/KEY/ALL
      %DCL-I-DELKEY, DEFAULT key PF1 has been deleted
      %DCL-I-DELKEY, DEFAULT key PF2 has been deleted
      %DCL-I-DELKEY, DEFAULT key PF3 has been deleted
      %DCL-I-DELKEY, DEFAULT key PF4 has been deleted
      $

      In this example, the user has defined keys PF1 to PF4 in
      the default state. The DELETE/KEY command deletes all key
      definitions in the current state, which is the default state.

    2.$ DEFINE/KEY PF3 "SHOW TIME" /TERMINATE
      %DCL-I-DEFKEY, DEFAULT key PF3 has been defined
      $ <PF3>
      $ SHOW TIME
       14-DEC-2001 14:43:59
         .
         .
         .
      $ DELETE/KEY PF3
      %DCL-I-DELKEY, DEFAULT key PF3 has been deleted
      $ <PF3>
      $

      In this example, the DEFINE/KEY command defines the PF3 key on
      the keypad as SHOW TIME. To delete the definition for the PF3
      key, use the DELETE/KEY command. When the user presses PF3,
      only the system prompt is displayed.