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To change an existing input textbox to a date field, right click the textbox and select Change to Date Field from the menu.
Date Field Properties
An important property to set is the date format property. Make sure this is set to match the date format expected by your green screen application. If this property is left blank, the format defaults to the skin default, and then to the global default if a skin default is not provided, and finally to MM/DD/YY if a global default is not provided. The Skin and global defaults are set in the Genie Administrator.