Set event by timer

Hi there,

Can someone help me?

I have problems to activate events by timer. I’m doing some tests application to learn and i don’t know how to activate post process by timer. I want to activate post process volume at 30 seconds from event begin played.
I have tried something but it deosnt work.
I know how to do similar mechanics activate by click or by trigger but dunno how to activate events by timer.

I attached 2 ss, 1st is what i am trying to do by set timer by event - in this i need help
and 2nd ss is what am i did - I’d like to show you that Im trying and trying a lot but in the end i have to ask you.

So if someone know how to do it, help me plz :slight_smile:
thank you for your time!

best regards