Manual Input to Form 8849

How do I manually input a sale transaction's correct "Cost Basis", and "Gain Subject to Recapture.." from a K-1 where this cost information was incorrectly reported in the Form 1099-B section for which basis is available but NOT Reported to the IRS (I had  imported this 1099-B into TurboTax).   

I know Overrides do NOT work because I was not able to clear the Errors for this Form 8849.

Thank you in advance for any solution/suggestion to this very frustrating issue!