How do I add installment sale form 6252 to my Turbo Tax 2016

To record an Installment sale in TurboTax Online:

• Click on "Search" and type "Installment Sales" in the window and hit Enter
• Click on "Jump to Installment Sales"
• On the page "Any Other Property Sales" check the box for: "Sales of real estate, cars, or anything else for which you receive payments over two or more tax years (installment sales)" and click Continue
  
• If you are using Deluxe you will be prompted to upgrade to Premier
• On the Installment Sales page answer yes to "Do you want to report an installment sale?"
• Continue through the interview and record the details of your Installment Sale
  

I followed your recommendations but when I did the review I got an error for not filling out line 19 of form 6252. Line 19 refers to lines 16 and 18 in Part I of 6252 which according to the form, says "complete this part for the year of sale only".  How do I resolve this error so I can e-file?

How do I add installment sale data to my Turbo Tax 2020.

What kind of data  do I add