In NPM 10.7 we introduced SNMP status polling. Simple click on node, List resource, change from ICMP to SNMP. If you need change in many nodes you can use Manage pollers.
Settings - Manage pollers - pick Statu and response time SNMP poller.
That's what I forgot -- Node > List Resource, change from ICMP to SNMP.
I don't suppose it could also be placed under Edit Node? That was where I was looking and seemed a bit more intuitive.
Thanks for the help!