ENHANCEMENT - VL10

Hi Friends,

Could u help me,

How to Add field <b>VBAK-SUBMI</b> as a Selection Criteria to the Selection Screen for the VL10(Delivery Due transactions)

I have concern program: <b>V50RINCL</b>,

user exit <b>V50R_SELECT_OPTION_ADD</b>.

Any help step by step to add field to SS of VL10.

Thanks in advance.

Regards. VK RAO.