How can I amend the married filing jointly to married filing separately in the desktop version TurboTax?

I have filed married filing jointly for 2023, IRS has accepted it. When I try to use the desktop version TurboTax to amend it from married filing jointly to married filing separately, should I amend it to a married filing separately form for myself, and then create a new tax return form for my spouse? Or should I amend the married filing jointly form twice, one for my spouse and one for myself?