Change projectile trajectory in unreal engine 4 to behave like a wave

I am new to unreal engine , I am trying to change my projectile trajectory so that my bullet move like a wave. Is this something that I can accomplish using unreal block editor or do I need to write some C/C++ code? I have done this using the block editor

But the projectile is spawn and the drop on the floor and keep oscillating. Can somebody tell me at least if I on the right way or if I have to write some c code to manage this.

PS : game is a 2D game.

You need to disable gravity in your Projectile. To do this select ProjectileMovement in your Actor and change the ProjectileGravityScale property to 0.0