[Feature]: Layered Notifications for Warning and Danger (Additional thresholds)

[QarthO]

Component

Hub

Describe the feature you would like to see

I'd if there were layered notifications.

For example if I have a system and I've enabled notifications for Disk Usage. I'd like to have a notification for the "warning" threshold and then an additional/separate notification for the "danger" threshold. (These thresholds are now customizable in 0.12.3!)

Motivation / Use Case

Improved Alerts

Describe how you would like to see this feature implemented

As for the design, it could be in the same slider, just an additional dot, (see example from a random image on google)

The left dot be the "warning" and the right dot be the "danger" threshold.

Would also love if the danger notifications pinged @here

Category

Metrics

Affected Metrics

Alerts! (all metrics)