Can you help me find the line D withholding amount on form 2210?

For future reference, you are using the Online version of TurboTax.

The only LINE D on the 2210 is in Part II: "Your penalty is lower when figured by treating the federal income tax withheld from your income as paid on the dates it was actually withheld, instead of in equal amounts on the payment due dates. You must figure your penalty and file Form 2210." But it doesn't seem like you are talking about that.

So please tell us what part of the 2210 or 2210IA that you are in. There are 3 parts in the 2210 and 2 parts in the 2210AI. Or perhaps you are thinking of column D?