You can specify an Edit Field Name that you can refer to in a formula or user edit routine as if it were a field name. When you refer to a field name in a formula or user edit routine, form examines the fields in formfile order until it encounters a field with the same Field Name or Edit Field Name. Normally, an Edit Field Name that you specify should not be the same as the Field Name of a different field.
When form calls a user edit routine because of a field change, form passes the Edit Field Name to the user edit routine if it is specified, otherwise, form passes the Field Name. For more information about user edit routines, see C/Base Utilities Manual Chapter 3, Form Programming Guide.