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To create the additional field navigate to CUSTOMIZATION->LIST, RECORDS & FIELDS->RECORD TYPES. On this page search for the record named “Payment File Administration” and click on the name to open the record. The overview page does use in most cases several pages so potentially you must navigate to one of the unfollowing following pages.
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On the page that opens after clicking on the record name you will see a grey button labeled “New Field”. Press this button to start the process of adding the additional field.
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