Activating death triggers?

Pandademic

I want to create a gauntlet/obstacle course for a ready room secret room. (One way back: through.) Would like to do flame bursts, choppers, crushers, etc. But I can't figure out how to activate/deactivate death triggers. Looking at the crusher from Mineshaft, it's just a death_trigger, a prop_dynamic, and a sound_effect.



Nothing in the visible options for these entities seems to tie one to the other. I guess the prop dynamic and sound effect are simply made-to-order for this particular room, but how does the death trigger know when to trigger? I copied just these three entities to a new test map, and they work perfectly together, so I know it's not some other game_rules entity.

fsfod

Its the Listen channel and Tag emit channel fields that connect them together you can also use timed_emitter or button_emitter entities to trigger them just make sure the channel numbers match.