Working with databases, including FileMaker, Access, and AirTable, there was a Primary or key field required which was to be unique. To me, that means the data in the Primary column should never be able to repeat. Currently, Text/Number is used for Primary. That may work in some projects, but it is not effective. AutoNumber is a GREAT option to make Primary because those AutoNumber cannot be reused. It can be used for search and filtering, but not for a new row of data. I recommend adding AutoNumber as another field type that can be used for Primary. Thank you. Eric