Notification Manager - Trigger Based on End Code

We would like Notification Manager to be able to have notifications triggered based on a job's end code. We have a few scripts that depending on how the script runs, could cause the End Code of the job to be any number of values. Some of these values warrant a specific notification to be sent out.

We'd like to be able to use Notification Manager to send a nicely formatted email out, however, we're currently only able to use triggers like "Finished OK". Unfortunately, this is too broad in this situation. If Notification Manager was able to trigger off of End Code, we could have a lot more control over this kind of situation.

Alternatively, another solution would be if there was a way for an event to trigger a specific Notification Manager notification.