If you want to see how many consoles are currently connected to your RMS
Create a custom view as per screenshot below.
You can also log on to Operations console with an account that is a member of the Operations Manager Administrators role for the Operations Manager 2007 management group.
From the Start menu, point to Administrator Tools, and then click Performance Monitor.
In the left pane of the Performance Monitor, expand Monitoring Tools, and then click Performance Monitor.
Select the root management server in the Select counters from computer box and press Enter.
Expand OpsMgr SDK Service, click Client Connections, and then click Add.
The performance monitor displays the number of connected consoles.