hi! I’ve made a rain particle system, however it only covers a small portion of the map. I know I’m not supposed to grab the particle system in the viewport and scale it (it makes the rain drops huge), but I can’t find a way to make the particles cover my whole map. In 4.11 we could add a sphere or a cube location but it’s not working in 4.16, unless I’m doing something wrong. 
Bump, I still can’t figure it out. 
Maybe use SetWorldScale3D node. Not sure if that works. However, this will likely be a very performance heavy process. The smart way to spawn emitters for instance for players, is to spawn them inside the player blueprint, and activate/deactivate them, or to change their visibility on the fly, as required.