[Observium] Alert dependency

Hello, Is it possible to set an alert dependency on observium? for example if there are 04 devices on the network: 01 router and 03 cascading switches.. If the router goes down, we do not need the 03 switches sending an alert anymore as they depends on the router. This will save us from flooding alert and make the alerting system more efficient.

Thank You and Regards,

Toky,