Opmanager Netflow plugin

Opmanager Netflow plugin

Hi There,
 
I have a 10 interface licence for opmanager netflow plugin and would like to monitor x2 24 port switches and 1 cisco router. I only want to monitor certain interfaces and not all of them. How can i configure the opmanager netflow plugin to only monitor the certain interfaces on the switches and router so that i am within limits of my 10 interface licence?
 
I am running Opmanger 8 build 8721, and Netflow plugin 8.5 build 8500
 
Thanks Marc

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