Where to set fx.Niagara.ForceLastTickGroup = 1

When I imported some metahuman character, I coundn’t find where to set fx.Niagara.ForceLastTickGroup = 1. unreal editor always give me this warning.

It’s a console variable used to set a project setting. You can just click “Enable Missing” and It will set that for you.

But next time, it still exist.