I created a smoke sim in Blender to spring on my players as a trap. Got it into the map, tried it out a few times and I think it looks great. The kicker though is that it always plays once when the map is loaded. I've disabled looping playback and I figure I can start it either behind FoW or on the DM layer and switch it over once the playback ends, but is there a way to just have it sitting there on the stage until I hit play when I wanna spring it on them? I intentionally made the first frame 100% alpha transparent so it wouldn't be obvious something was out of place over the map as drawn.