I didn’t completely understand the question. You mean how to make your BP projectile work with this?
You’ll go to your bp’s class settings and change its parent class to EBBullet, like this:
After that, all movement and collision will be handled by the plugin. You’ll also get a new custom event OnImpact that will be triggered when the projectile hits something.
(at least that’s how it works atm, it may change)