1120S Business Bank Interest

Why doesn't TurboTax include the business bank interest on Line 5 of 1120S? I see it is included on the K1 so we pay taxes on it, but it seems it is income for the business which I would think would increase QBID if it were also included on the 1120S? The IRS instructions seem to say interest income can go here so I am wondering why TurboTax doesn't include it on 1120s and what impact it would have if it were included? Like could I go to forms and type it in on line 5 myself, and would it have the desired affect of increasing QBID without causing any other issues?