Can I defer the American Opportunity Credit and use the Tuition Deduction instead? How do I use Option 2?

You can override the Education Optimizer and select the education tax benefit you want to claim by using the following steps:

• On the top row of the TurboTax online screen, click on Search (or for CD/downloaded TurboTax locate the search box in the upper right corner)
• This opens a box where you can type in “letme” (be sure to enter exactly as shown here) and click the magnifying glass (or for CD/downloaded TurboTax, click Find)
• The search results will give you an option to “Jump to letme”
• Click on the blue “Jump to letme” link 

See the following TurboTax article for more details if the steps above do not work: 

How do I override the TurboTax Education Optimizer selection?

@bigbluedane