I made an additional payment of state taxes due to roth conversion of traditional IRA. Where do I enter that?

I have tried searching on TurboTax (web) and it tells me to go to deductions and credits but I do not see how to enter this single payment I made to GA. It was not associated with an extension. I entered it in "Withholding not already entered on a W-2 or 1099, which is technically not correct since it wasn't "withholding" but an additional payment. Thanks for any clarification.