Hello EMC community

I am fairly new to this community and need to know few thing for EMC Smarts 9.4.1 tool.

How to tag/group devices and interfaces such that those interfaces can have custom Escalation Policy.?

For example, I would like to send High Utilization notifications from only few devices to an external webservice. I have created Escalation policy to trigger script which makes the webservice call. I can edit escalation policy to only include device with a certain Element name but then I have to give not matches rule for another escalation policy where I donot want this to be handled. Is there a way I can use "User Defined" attributes or some kind of tags/groups instead of specifiying each Device name.

If someone can guide here that would be great.

Thank you.