It is the most generic field and allows the insertion of an alphanumeric value.
Do not allow duplicates
If enabled, before saving, the program checks all the values in the table. If another record with the same field value is found, saving will be blocked.
Allows you to set the value on a new detail automatically. This field also allows you to enter the key of a constant (for example $namekey). If a default value that is not compatible with the field type is entered, it will be discarded.
Number of characters
Allows you to set a maximum number of characters that can be inserted inside the field cell.