CSS Profile Question

So I have a question about the CSS Profile, and I couldn’t really find the answer online (if I did, I probably didn’t understand what they were saying).

As a POSSE Finalist, I am required to turn in my CSS Profile to my school TOMORROW, November 15, because of ED. The only school I have on there is my POSSE school and I’m going to submit my CSS Profile tomorrow. My question is, since I only have one school listed at the moment, can I add more schools later after I submit?

Thanks.

Yes you can.

Yes you can.

At any time, you may add a college or program by going to the
PROFILE home page and clicking “Add Colleges to Submitted
Application.” You will be charged $16 for each college or program
you add. Any unused fee-waiver eligibility will be automatically
applied to your charges. You may not delete any recipients once
you have submitted your application.

https://professionals.collegeboard.com/profdownload/PROFILE_Student_Guide.pdf