Disable alarm notification pipeline programaticaly

What is the best way to disable an alarm pipeline programaticaly? I am trying to disable pipelines from a user screen when there is a alarm storm such as a power failure. Is it possible for an expression block from within the pipeline editor to see the status of a memory tag? I tried adding the prefix {Tags/XXX/AlarmDisable} with no luck. I think I am missing a prefix or something since pipelines are at a global level.

Some emails can get out of hand while trying to start a process back up. I want to add a check box on a screen to temporarily disable certain pipelines.

I know I could set some associated data with each alarm instance and see it within the switch or expression block but that seems painful to implement and maintain. I’m looking for more of a global approach.