The ABc# options can be used in this field to determine the formats defined by the client via the parameters TUL* (ADX chapter, FMT group). For more information on the entry options, please refer to the dedicated documentation.
The limit of 15 characters concerns the database. The limits for print-outs are given in number of centimeters and not characters. Some reports may not display 15 characters (this depends on the font used, the characters themselves, the printer, etc.).