When amending a prior year's return, how do carryovers get updated in future years?

I've found I've done the Mortgage Interest deduction wrong (had a cash out which was used to buy rental property).  I've just filed amended returns for the past 3 years.   My question here now is how to account for that updated loss that carries over year to year in TurboTax?   I want to make sure 2019 pulls in the right amount.   Is it as simple as updating the carry forward number directly in a form within TurboTax.   (Not done that before, just used the GUI).    I use TurboTax Premier on my Windows computer (CD installed - not online).  Thanks for the help!