You can modify character code to add new fields to program screens. New fields can be added to existing tables without requiring schema changes. These fields are not physically part of the master tables but are stored in a side table and thus require a different way to access their values from the code. For this purpose, the include file gpgenfld.i gives access to the values of these new fields through function calls.

To gain access to the get and set function calls, include this file at the top of the program that will use them, for example: