Top Law Schools

I chose to do the primary application forms, but I don't know how I'm supposed to select it (there's no option on the main page of the active application page on LSAC). Is there an option for that once you decide to pay?

The primary application goes to law schools. The common application is just there to make your life easier when you're filling out the primary applications, because what you put on the common application autofills into the real application forms. It doesn't go anywhere and you're free to ignore it completely.