You didn't say whether you are using the TurboTax Desktop software or TurboTax Online.
If you are using the TurboTax Desktop software you can go to forms mode, click Open Form, and open federal Schedule A or any of its associated worksheets, even though it is not included in your federal tax return.
In TurboTax Online there is no way to see a form, schedule, or worksheet that is not part of your tax return.
