[Observium] Activate alarms for a group of Nodes - Customized Dashboard

Hello Team,

I have created a customized dashboard included of 150 ports ( graph ) :

I want to activate two below alerts just for 150 nodes not all of the nodes in observium , what is the easiest way by GUI ? Could you please guide me about it?

1. Traffic abnormal, 0 or full bandwidth 2. Physical port down

Thanks Farah