SAPScript(ABAP)

Hi,

This is Prabhas ,hope you are doing well .

My doubt is, i m using existed PRINT PROGRAM/DRIVER PROGRAM and existed form also .As per new requirement,adding some fields and its values .1) should i take different print prog. or include logic in same print prog.? 2)if i go for new print prog ,where should i include that piece of code(in form editor/print prog)(where exactly i should put)?