If you click on the dropdown and click on Developer|ControlsProperties, then select an entry's display name to edit, you'll see the additional details stored in that item's 'value' field. Similarly, if you click on 'Add' to add another item, a dialog will pop up asking you to supply the display name and value. No VBA is needed to do that setup.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]