event.initiator in lua predicate

[Activity]

I'm trying to trigger something when a specific unit fires a weapon, in external lua script I'd make a custom event handler for this but I'm wondering if the same could be done in the mission editor. So using a lua predicate that checks event.initiator == something as a condition for a event based trigger (ON SHOT). Does anyone have any idea if this is at all possible?

[Grimes]

No. These is nothing within the lua predicate trigger condition that refers to how it was activated or anything like that. You have to add an event handler via do script to check for what you want. 

[Activity]

Alright, thanks for the answer!