On the Data Type property, in addition to the existing Combobox Date Type selection button, please add 3 new button that will take the existing data type to a List or Record or the object's base data type.
BaseDataType
ToList button: BaseDataType - > BaseDataType List
ToRecord button: BaseDataType -> BaseDataType Record
ToBase button: disabled
DataTypeList
ToList button: disabled
ToRecord button: BaseDataType List -> BaseDataType Record
ToBase button: BaseDataType List -> BaseDataType
DataTypeRecord
ToList button: BaseDataType Record -> DataType List
ToRecord button: disabled
ToBase button: BaseDataType Record -> BaseDataType