To specify an existing handler manually, follow these steps:
1. Click the Specify Handler radio button on the Configure Handler dialog.
The Handler field becomes active.
2. Press Ctrl-space bar to auto-complete this field with a MCO or Macro.
3. Select MCO or Macro.
4. Press Ctrl-space bar to select from a list of existing MCOs or Macros.
5. Click Finish.
The syntax of this handler appears in the Handler column of the event for which you created it on the Manage Component Events dialog.
The MCO or Macro also appears in the Outline view, under events for the component to which you assign this handler to an event.