Set timer be event

Hi there,

Can you help me activate post production volume after for example 30 seconds?

Im trying and trying and nothing happend ;/

I know how to activate it by trigger or by button but dunno how to do it by time.

I think it’s easy and if you will tell me what am i doing wrong i will get it!

1st ss is try activate event by time
2nd ss is working event by trigger

Thanks in advice

cheers