You enter the details for ES-tax payments under General > 2023 Estimated Payments.  This is the input screen you use for both federal and state payments.

If your client has multiple states or had made multiple ES-tax payments for the same quarter on different dates, you can click on the + sign on the right of the field (where you see Expand Details prompt in the screenshot below) to open the pop-up that will allow you to make entries on multiple lines.