IAQ calculator occupancy designations?

I'm working on a dormitory that features 4-bedroom suites that are occupied by 5 people (3 single rooms and one double per suite as well as a living room, shower room, sink/vanity area, and toilet). Each suite is its own zone. The basic occupancy designations in the calculator only go as high as a 3-bedroom dwelling-unit with 4 occupants. Should I risk the 3-bedroom unit option and modify the occupancy to 5 or should I instead try the bedroom/living room designation? Additionally, each dorm floor features a combined living/dining room with a kitchen and entertainment/study area. Could the multi-use or multi-purpose assembly designation satisfy this sort of zone? Thanks!