Subscripted form fields
Subscripted form fields must be located and redefined when moving to Genero BDL.
IBM®    Informix® 4GL forms can define subscripted
fields with    multiple field definition entries in the 
ATTRIBUTES section,
   each defining a piece of the data displayed by the field, as in
this    example:DATABASE stores 
SCREEN
{
   1234567890
  [f01       ]
  [f02       ]
}
END
ATTRIBUTES
f01 = customer.cust_name[1,10];
f02 = customer.cust_name[11,20];
ENDIn the ATTRIBUTES section, the name of the field
is immediately followed by a subscript specification defining the
piece of sub-data the screen tag displays and allows to input.
This feature is not supported by Genero BDL, all fields must be defined as a whole.