Trigger volume for each Niagara emitter?

Hi,

I’m looking for help in creating a blueprint that links a trigger volume to a specific Niagara emitter.
I’d like the player entering the trigger volume to change the emitter’s state from off to on.

I found Set Emitter Enable but I’ve read this isn’t implemented in the engine and it didn’t work when I tried.

I’ve started by adding the following to my Level’s blueprint:

Any help appreciated.