Add custom fields to Purchase requistion ME51N/52N/53N transactions

Hi,

I need to add 2 custom fields to the purchase requisition transactions ME51N/52N/53N. I've added the fields to the EBAN table via the structure CI_EBANDB but I don't see them reflected in the Items ALV on the purchase requisition. Is there any additional setting required to bring those fields into the ALV?

Thanks,
Esha