can i set off the post process volume off and activate it through a trigger?
Sure you can. If you want to make it the new global PP volume, get references to your current global pp volume and the new PP volume in the level BP and then Set Unbound for both of them(set the current one off and the new one on) with your event. If you want to activate a PP volume and keep it as a volume then set it’s Blend Weight to 0 inside the level, then set it to 1 in the level BP with your event.
thanks 