Parent - Child dependencies and Email Alerts

I have been trying to set up this parent - child dependencies thing....  but have not been able to.

Maybe I'm looking at this from a wrong angle, but what I would like to do seems pretty straight forward...

One example is a Cisco Nexus device currently being monitored in NPM, also set up "Alert me when node goes down" email alert.

I am also monitoring about 200 interfaces on this device, and these interfaces are part of "Alert me when an interface goes down" email alert.

Whenever one of those interface goes down, I am always happy to see that we receive an email alert about it.

The problem is when the node goes down.....   and I receive an email from each one of those 200 interfaces...

We are running NPM 11.0.1 and I would like to set these interfaces as "children"   meaning the "Parent" would be the Nexus device.  For alerting purposes, I would like to set something like this:

IF (interface) is "down"

and (Parent_Node) is up

then send (Interface_down) alert

IF (interface) is "down"

and (Parent_Node) is down

then send (Node_down) alert

How can I do this?    or how can I avoid the trigger of the 200 (interface_down) alerts when I already know the device is down (and its obvious the interfaces would be down too)

Thanks!