Would it possible to tick more than 1 option on SimOn as more often than not one issue applies to several different areas? This would make it easier to use and more time effective.

Because the feedback in SimOn is assigned to one topic and subtopic, it can be distributed to the relevant areas in the Uni.  If the feedback was able to be assigned to more than one then then would be an increased risk of feedback being duplicated.  SimOn is designed in a way to encourage Reps to focus their feedback on one specific topic at a time, selecting multiple topics and subtopics would negate this and potentially dilute the feedback.