Ok, so I have just figured out how to create data sources for the number of active users on a hotspot. What I need now is to add the individual data sources to create total active users across each sub net.

Any help, is appreciated.

In case anyone is interested, here the source code to get the number of active users:

array_size(oid_column("iso.org.dod.internet.private.enterprises.cisco.ciscoMgmt.ciscoAAASessionMIB.casnMIBObjects.casnActive.casnActiveTable.casnActiveEntry.casnUserId"))

Thx

You can't create a sum of probes across different devices that I know about.
If all the information was retrieved from the one device you could do it with a probe which aggregated all the SNMP values you wanted, but I really don't think you could do it across multiple devices.

Regards
Paul