How do I Use An Overlay Effect Over and Over Again?

I think I might be overthinking or overlooking something, but...

Is there an easy way to have a custom overlay effect that doesn't have to be copied onto each layout in a project? Like a project effect or something? I'm trying to create a game with an old-timey tv overlay and it has to be in every layout and it's just tiring to copy it over and over again and reset the parameters over and over again... is there a better way?

bump

I think you can make it a global layer.

Thank you! I knew I was overlooking something.