I have accidentally hit “File By Mail” using the Online version. Need to add more info, but cannot get back in to data entry?

Please follow the instructions below to open your return back up to be able to make changes:

1. In TurboTax Online, sign into your account.
2. Select Tax Home in the left menu.
3. Scroll down to Your tax returns & documents.
4. Select 2018, and then select Add a State (you're not actually adding a state, this opens the return back up)
5. Select the area on the left where you need to make changes (My Info, Federal, State).