How can I report the reduced sales price for installments sale (first payment was made in the previous year)? Can this be done in Turbotax?

How form 6252 should be changed compared to the non-adjusted sale price?

Part I says "Complete this part for the year of sale only". However, if not filling, there is no good place to report the reduced price. Publication 537 says to complete Worksheet B. However, it seems to be for personal use and need not be reported to IRS.