In the "Traditional IRA and Roth IRA" section within "Deductions & Credits", what should I enter for after tax contributions and Roth conversion in my 401k account?x contributions when are converted to Roth?

I have a 1099-R which shows a Gross Distribution (I think this is probably the converted amount), and a Taxable Amount (I think this is how much the value increased between original after-tax contribution and conversion, but I have no idea how to convey this in TurboTax terms. Should I enter something in the Traditional IRA and Roth IRA screen? It asks how much I contributed to the Roth. Is that the Gross Distribution / Conversion amount?