How to shoot a cluster of rays in a cone shape

[RC_R0BLOX]

1. What do you want to achieve? Keep it simple and clear!
   I want to shoot a cluster of rays in a cone shape
2. What is the issue? Include screenshots / videos if possible!
   I want the raycasts to be shot like this: (Green rays are raycasts)
   
   

So yeah. Help is appreciated