Yes, you can add multiple students to your account.
The process for adding multiple students will vary based on the program your school has chosen.
You will either have the option to add students at the "In Honor Of" step in the registration process.
Or if you were promoted to create a parent account, you will be prompted to add your student(s). You have the option to add as many student(s) as you would like by clicking the "+Add another student button". Both scenarios are pictured below.