Conal Collision Missiles: Possible?

I'm trying to make a spell like Crushing Wave, except it also slows units that it hits. Problem is, I don't see any functions or arguements in the CasterSystem to make a Collision Missile conal. Is it possible, and if so, how?

yep theres no function in cs where u can make collision missile conal

There is an AddUnitsInTriangle function by Vexorian. It's contained in his SpellFactory test map you can find in the resource section.