Radio Button Group in FPM

Hi Experts,

                 I have a requirement to delete  one of the radio buttons in the radio button group in an FPM form. The radio button group has three radio

button options. I need to delete one and Change the description of the other. I believe in FPM form the radio button group points to the Domain. I am unable find any domain with the name " VERIFICATION_TYPE", which the field name for the RB group element  in the configuration is pointing to. i even tried to debug the feeder class method "IF_FPM_GUIBB_FORM~GET_DATA" but left with no clue. As i am still debugging i was hoping that any one of you could guide me in the right path. Thanks!! in advance.

-Vishnu