Please allow conditions like A > 3xB in Alert's "Trigger Condition".
Use case:
I'd like to set up alert if data for given object are older than two poll intervals, to reduce alert noise while keep informed if there is a problem with data collecting.
For different objects there can be different data collecting intervals, for example 100 low end routers checked every 5 minutes and brand new core router checked every 30 seconds, so "condition must exist for more than ... minutes" is not a solution.
