Pass by reference variables in custom events

I’m needing to use a timeline in my Event, seen as you can’t use Timelines in Functions or Macros, I have to use a Custom Event.
The fact that you ‘might’ use a Delay in an event is irrelevant, that is up to you to sort out another check to see if the ‘possibly destroyed’ actor is still valid after the delay, like you would before preforming any action on another actor.