How to enter a number on Line 7 of Form 8889, Additional HSA contribution amount?

I had excess HSA contribution in 2023, so I need to enter a few hundred dollars into Line 7, Form 8889,  but I can't find a way to do so, except to override it.

 

I don't know if this is a bug in TurboTax Premier, I meet all the requirements for Line 7, Form 8889:

Line 7:
If you are age 55 or older at the end of the year, and you and your spouse had family coverage under a high deductible health plan at any time during the year, any additional contribution you are entitled to will be calculated here.