How can I edit the amount of property real estate taxes I previously entered? The software keeps going directly to the itemized vs standard deduction page.

I entered in my property real estate tax deduction when I first started doing my taxes. I have since found an additional tax credit that I received this year, so I need to adjust the number that I entered. But the software isn't allowing me to do so. It keeps bypassing that page and going straight to the page telling whether I should do the itemized vs standard deduction.