Currently, maintenance events generated by scheduled maintenance have no information regarding the maintenance. This means that if users are not rigorous on adding comments, when checking a specific monitor there is no way to know if a maintenance was scheduled or not (and the reason of the maintenance).
This idea could be implemented in 2 ways:
Add a new section on the create scheduled maintenance called "Comments"
Add as a comment to a scheduled maintenance the Display Name + Description. (Or the Description).