When an action breakpoint triggers, the debugger suspends execution and
  then executes a specified list of commands.

  The following procedure sets an action breakpoint:

  1.  Display the source or instruction line on which you want to set the
      action breakpoint.

  2.  Display the Set/Modify Breakpoint dialog box in one of the
      following ways:

       -  Press Ctrl/MB1 on the button to the left of a source line, an
          instruction line, or a breakpoint entry in the breakpoint view.
          This causes the Set/Modify Breakpoint dialog box to display,
          showing the source line you selected in the Location:  field.

       -  Choose the Set (main window) or Set/Modify (optional view
          window) menu item from the Break menu.  When the Set/Modify
          dialog box appears, enter the source line in the Location:
          field.

  3.  Enter one or more debugger commands in the Action:  field of the
      dialog box.  For example:

        DEPOSIT x[j] = 3; STEP; EXAMINE a

  4.  Click on OK.  The action breakpoint is now set.

  The following procedure modifies an action breakpoint; that is, it can
  be used to change the command associated with an existing action
  breakpoint, or to change an unqualified breakpoint into an action
  breakpoint:

  1.  Do one of the following:

       -  Press Ctrl/MB1 on the button to the left of a source line, an
          instruction code line, or a breakpoint entry in the breakpoint
          view.

       -  Click on a breakpoint entry in the breakpoint view, and choose
          the Set/Modify item from the Break Menu.

  2.  Follow steps 3 and 4 of the previous procedure, as appropriate.