You can enable RMON through Campus Manager for all link ports. Link ports are those which show up on the Topology Map. While this is typically trunk ports, it could be non-trunk ports that happen to connect to other Cisco devices.
The RMON visualization allows Campus Manager's Topology to highlight links in different colors based on traffic utilization on those links. Campus will poll the configured RMON collections on the devices during Data Collection to get this information.
The bandwidth filter settings can be further customized once you launch Topology Services. Go to Edit > Bandwidth Filter Settings, and you can adjust your thresholds and highlight colors.
The RMON collections configured by Campus Manager are different than those configured by CiscoView. CiscoView uses RMON for realtime reporting and fault generation (i.e. sending RMON syslogs or traps) where as Campus is using it to further document your network.