There is a “Why Tulane” essay that is optional but that you should definitely submit.
CAVEAT: My D was a high stats kid who did the “Why Tulane” essay, applied EA and was deferred, so that is not enough to check the interest box IMO.
If there are questions you have about Tulane that you can’t find the answers to on their website, you could email your regional admissions rep as a show of interest.