[Observium] how do I create an alert checker in the new model?

Hi, After upgrading to the latest CE version (quite a while ago), I noticed that the way alert checkers were created had changed. My checkers from before were still there, however, I cannot modify them and creating new ones seems much different. I have looked at the documentation on the web site, and it still seems to reference the old way, not the new way. I want to add a new rule that applies to all devices, I assume I need to make a rule in the “association ruleset” however, when I select “device in”, I cannot put an “*”, I have to pick individual devices…..

How do I use the new alert checkers?? Are there docs I am missing??

Thanks for your help!