Noedit
A very roundabout method that i haven't tried is you could try using the 'bounce' feature, where two bricks are planted next to each other. One has raycasting on, the other doesn't. Both bricks have projectile>bounce events. When the projectile collides with the brick with raycasting, it triggers the events you want and turns off raycasting on that brick momentarily, so that the projectile may bounce off of that brick, rebound from the second brick, and exit through the previously raycasted brick.
Very roundabout, but might work.