I need to set up a number of alerts for network-type nodes based on a custom property value. I've added the custom property and I know how to select it in an alert. We also have dependencies auto-calculated for us by Orion. Normally, if reaching one network node is dependent on a different network node being up, alerts based on "node down" status will not fire if it is a dependent node. The custom property is used for grouping our infrastructure, it has nothing to do with the status of the node. However the whole point of this is that I want to make sure the dependencies are still effective in filtering out "dependent" nodes that cannot be reached because something before them is offline. Or is the dependencies table simply responsible for changing the nodes to "UNREACHABLE" instead of "DOWN"?