To my knowledge, there is currently no built-in option in Maple Learn that fully disables AI features for specific users or during exams. Since academic integrity is a serious concern, I would recommend contacting Maplesoft support directly to confirm whether an institutional setting or temporary restriction can be applied. You may also consider posting this question on MaplePrimes, where staff and experienced users often provide official guidance. In the meantime, supervising exam sessions and clearly communicating policies to students may be necessary.