Are you saying that you have two students, one who is eligible for the American Opportunity Credit and one who is eligible for the Lifetime Learning Credit? If that's the case, you enter the information for each student separately in TurboTax. After you enter all the information for one student, you will come to the Education Expenses Summary page. On that page, click the button that says "Add a Student" and enter the information for the other student. TurboTax will create a separate Page 2 of Form 8863 for each student.
