It would be just as simple to do it manually.

The credit goes on line 15.
Due to delays and the level of fraud, attach a copy of your closing statement, highlighting the seller name, the buyer name, the address, date and purchase price.

You must file out a paper 1040X and form 5405. You cannot amend your taxes through turbo tax e-file. You have to mail in your amendment and form 5405.

when you open up Turbo Tax, there will be a choice on amending a ta return.