I saw conflicting info wherever I looked on website so I emailed an admission counselor and this was the answer:
Applicants to the Honors College, University Scholars, and or WISE: Upload a brief statement in your admissions portal on why you believe you will be a good fit for your preferred honors program.
There are no set guidelines on format or length. Therefore, please use your best judgment with this. This must be uploaded onto your applicant portal by the priority deadline of February 1st, 2021.