Next is theไทม์สแต้ม drop-down box. This allows the user to select which, if any, field in the data holds the time stamp. If there is a date field in the data then the system selects this automatically. If there is no date present in the data then the "" option is selected automatically. The user may select the time stamp manually; and will need to do so if the time stamp is a non-date numeric field (because the system can't distinguish this from a potential target field). The user also has the option of selecting "" from the drop-down box in order to tell the system that no time stamp (artificial or otherwise) is to be used.