Deductions & credits

I was reporting IRA conversion using Turbotax, follow below steps:

To enter the nondeductible contribution to the traditional IRA (pay attention to step 8!):

1. Open your return
2. Click “Deductions &Credits” on the top
3. Click "I'll choose what to work on"
4. Scroll down to “Traditional and Roth IRA Contributions” and click “Start”
5. Select “traditional IRA”
6. Answer “No” to “Is This a Repayment of a Retirement Distribution?”
7. Enter the amount you contributed
8. Answer “No” to the recharacterized question on the “Did You Change Your Mind?” screen
9. Answer the next questions until you get to “Any Nondeductible Contributions to Your IRA?” and select “Yes”
10. If you had a basis in the Traditional IRA before then enter the amount.
11. On the “Choose Not to Deduct IRA Contributions” screen choose “Yes, make part of my IRA contribution nondeductible” and enter the amount.

But I was unable to get the "“Choose Not to Deduct IRA Contributions” screen.

How to fix this issue?

Thanks,