SAP Standard screen modification and logic

Hi All,

I have four tab strips in my standard selection screen. in the second , third and fourth tabs i need to add same fileds

for exampls

surgery tab

optable procudere code procudure category (standard functionality)

opttable2 procudure code2 procudure category2(custom to be added)

opttable 3 procudure code3 procudure category3(custom to be added)

medical dat tab

diagnosis code(standard)

diagnosis code2(custom to be added)

diagnosis code3(custom to be added)

The standard program uses one structure (RNEBILL) in the structure i have added APPEND STRUCTURE(ZPPAND1)

in the structure i created all the fields.

could you tell us how to proceed futher development logic.

Regards

subbara