Tutorial for Jean Moreno's Cartoon FX??

I purchased all three of the CFX from the asset store, but I can’t figure out how to use them in the game. What I did was I attached the CFX_Spawn system script to a gameobject and added the required CFX prefabs into it. Now whats the next step? Do I need to write a script and instantiate them when required? I need some of them to run at loops, while some of them to run once and some of them to start randomly on the screen view… Any help will be appreciated … Thanks…

Just drag and drop the prefab into the scene.