I've searched the Thwack and haven't found the answer, so apologies if this is a dupe question.
I have defined a custom property for our nodes "MachineName". I would like to use it in the URL of an HTTP monitor. I thought the URL field should then be:
http://${IP}:${PORT}/${MachineName}
However, the ${MachineName} is not being replaced with the custom property in the HTTP call. Is there a way to do this I'm not seeing?