How do I grab data via SNMP, display it, and alert if above a threshold?

Hi @clueless_user 

First you have to define a parser for your OID. The parser interprets the result and assigns a variable to the value (Go to Parser Library - Right-click - New Parser.) Select SNMP and input your OID and select a device to test it on.
Then you can create a Qapp using this parser and export the result as CSV.
If you want regular checks, you can create a Scheduled Qapp. In the export you can filter for your variable. If it exceeds a certain value, put it in the CSV and send it by email.