2. In the Inspector, click the Data 
tab.
1. In Layout mode, select the field.
2. In the Inspector, click the Data tab.
3. In the Field area, for Control style, choose Drop-down Calendar. Then selection options.
•Include icon to show and hide calendar displays a calendar icon in the field. If this option is not set, the calendar is automatically displayed when the user enters the field.
•Auto-complete using existing values is available only for fields defined as text.
•To view the drop-down calendar, select the field (or click the calendar icon) in Browse mode or Find mode.
•Use Control Panel (Windows) or System Preferences (macOS) to change the day on which a week begins in a drop-down calendar.