Unable to Update Entry on Turbo Tx

I am using the downloaded version, not online.

Stepping through the entries

I want to Update something but when I select Update the page states Thanks you're all set......

But I want to step back through this section for Medical Expenses to reenter the information - How can I step through this section again to Update what I entered.

When we select Update, we should be able to step back through the form

How can I do this?