In the particle editor, inside the “Emitter Block” (Num. 2 in the image below), there are 3 buttons, the left one seems to be enable/disable, and the right one seems to be solo mode, but what does the center one do?, I can’t seem to find any mention of those 3 buttons anywhere, not even in the official reference (Cascade Particle Editor Reference | Unreal Engine Documentation).
That button cycles between the various options for the Emitter Render Mode.
With an emitter selected, you’ll find that option under “Cascade” in the details panel. If you watch the details panel while you click the button, you should notice the change.
Thanks! its been bugging me since I started working with the particle system 