I need to be able to create an alert for a metric that has som update date field in it. Specifically it's interesting to know when the last time was that a device was online/connected to a MDM server.If that was more than 7 days or maybe 30 days ago, I need to trigger an alarm, as that could be a lost device or a device that is not managed anymore.Se in general I want to be able to hanlde dates like this, and not have to compare to a dat to get the alarm, but to a number of days.