Hi Venkat,
otherwise, just flag a field 'W/O Accr. Intr.' (Without Accrued interest) in a section 'Accrued interest calculation' in transaction.
as correctly mentioned by Akhil above, the section "Accrued Interest Calculation" comes automatically based on the product category characteristics and it cannot be controlled via Field Selection. the reason is that if you buy/ sell Liabilities Securities with coupon, their price consist both market price and accrued interest element.
Kind regards,
Renatas