I am working on setting up alert notifications out of PRTG and wanted to be able to setup a notification for specific sensor types. I read a posting about creating libraries but this didn't seem to be an easy method. I am wanting to get an alert notification setup for all servers if they are offline. Was going to base the alert on the WMI Uptime sensor type unless there is a better sensor to use. Trying to avoid having to setup the same notification on about 125 servers.