Under the User Profile:
Policing Rate Limit 802.11a/b/g, 802.11n, and 802.11ac modes: Assign the maximum traffic forwarding rate per user profile for each radio mode. This is the maximum amount of bandwidth in Kbps (kilobits per second) that all users belonging to this profile can use. Aerohive devices control the maximum amount of bandwidth that all members in a user profile can use by enforcing a maximum rate limit. This limit applies to the cumulative, concurrent traffic of all the members belonging to a profile.
Since there is no way for all APs to collectively talk and aggregate their usage (being a distributed architecture), this most likely applies to the SSID but on a per AP basis. If you're wanting to throttle the entire subset of users as a whole, it would be best done on the VLAN for the particular SSID. At the content filter perhaps.
