Cisco Switch ErrDisabled Status on Port

This is doing exactly what we want but with one problem.  How do you stop a scripted event source from creating duplicate alerts every time it connects and runs?  Hmmm I wonder if I can do something with my Escalation Chain.

It would be awesome to be able to suppress these IF it detected the same port was disabled and an existing alert was already active based on message matching or something.  I need a checkbox similar to the checkbox on the Windows Event Logging type Event Source.