There is no way to make an entry on Schedule 1 line 24z in TurboTax. Why do you want to enter something on that line? Maybe there's another way to accomplish what you are trying to do.
Please clarify, what kind of adjustment do you need to make? You usually will need to make a negative entry on Line 8z. There is no question in TurboTax that will put an entry on 24z.
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