For a 592-PTE reporting tax withholdings against 2020 taxes due, within the 2019 Lacerte Module go to page 32.1 (Partner Misc Info), section "California Quarterly Withholding on Nonresident / Foreign Member Distribution", and enter the "Amount Distributed Subject to Withholding" and "Amounts Withheld" for each partner, and this will show up on page two of the 593-PTE.   Of course, you also have to enter "2 = File 529-PTE" on page 43.013 (California Nonresident W/H - Form 592) for the form to be generated.