SE tax deferral

[MelR]

Self-employed taxpayer with income in 2020. Taxpayer wishes to pay full amount of SE tax due rather than defer until 2021. Is there a checkbox for this or do I need to enter $0 earnings after March (even though this is not correct) or ??

[TaxGuyBill]

I use ProSeries, so I'm not quite sure of the exact mechanisms in PTO, but I think the proper way to do it is to leave the amount on Schedule SE, but then go to Line 12e of Schedule 3 to change it to no deferral.