New fields in CS20

Hi Experts,

I have a requirement of adding new fields (eg. version, platform, language) to 1st screen of transaction CS20 as a selection criteria. Is it possible to do using screen exits ? Users are ok if I create any zprogram / ztransaction for this. But I don't know if this requirement is doable or even if it is doable then how much efforts it will take..

Can anybody please help me to find out how to do this ?

Thanks in advance..