Currently, when monitoring Cisco Switch Stacks it appears that Orion picks up on the capability, not the use of stack ports and Stack Pollers.
It is sort of a manual effort to review the data and then disable the Stack Polling on all the Single/non-Stacked Stackable Switches.
NPM Also shows a message on the detail widget where the system detects a single switch/no-Stack. It would be nice from the Poller Management, or somewhere to mass disable the Stack Polling on switches that are not specifically stacked.
I would even take a disable link, with a msg and option for mass disable from this page. Whatever is easiest to get us to bulk management, or autodetect feature SW.