You can't directly change the total itemized deductions on line 39, but you are supposed to be able to change the individual deduction amounts in the Itemized Deductions Summary at the bottom of the worksheet. However, I do see a spurious entry in the Itemized Deductions Summary.
What is the specific line number where you see an entry that can't be changed? What is the amount, and can you tell where it comes from? Do you see the same amount somewhere else in the same column?
It looks to me like the Adjusted Gross Income (AGI) from line 37 is getting plugged into line 11 of the Itemized Deductions Summary. Is that what you are referring to?
