Switching 8-bit pixellize post process

I followed the tutorial and have the ability to turn on and off the 8-bit pixellize effect. What I am wanting to do is there a way using blueprints or some other way to have an event turn on for a period of time that effect, and then switch it back off. In other words, enable and disable again. Not sure where to get started with this.

Hey!

Is your pixelize in a post process volume at all?