Since you have not filed yet you can go back & change your option. For Online, select File in the left menu, and follow the instructions until you get to the screen you want to change.
If you can't get back into your return, try the following
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 just opens the
return back up)
5. Make changes and then refile
