How do I change my tax refund option from receiving a check to applying it to next year's estimated tax?

I completed my 2021 federal and state tax returns using TurboTax Premier.  I specified that I wanted mailed checks for both the federal and state refunds I have coming.  I completed both tax returns but I have NOT yet filed either one. I would like to change my refund option so that my refund for both federal and state is credited toward my 2022 estimated tax payments.  I don't see where I do this.  I appear to be able to change the refunds from mailed check to direct deposit, but I see no option for applying the refunds to next year's tax.  Can someone help?  Thanks.