I'm looking for a way to setup a tiered layer of alerts for agents being offline based on how long they've been offline.

For Example:

2 Minutes offline email level1@domain.com

30 Mins offline email level2 and rearm

1 hour offline email level3

I want to deliver a system by which Level1 is emailed first if a server goes offline then level 2 and level 3 as increasing with importance over time.

It would seem that with the current Agent Status option you cannot have multiple conditions setup, how can I get around this?