Can you please help me finish my return by allowing me to enter my ÀGI

Are you unable to do so in the File tab?

I'm not sure how to do that.. I looked at all options and don't see where to do it ...

How to enter your AGI in TurboTax Online which is entered in the File section:

1. Sign in to your TurboTax Online return.
2. Select File and you’ll get to the [Your name], just (…) more steps to complete screen.
3. Complete Step 1 and 2 if you haven’t already done so, then go to Step 3.
4. When getting to the Let’s get ready to e-file screen after selecting Step 3, select I want to e-file before you continue.
5. Follow the online instructions. When prompted, put in your exact 2017 AGI.
6. Continue through the screens until you’ve re-transmitted your return.