Drone behaviors. Tutorial?

I noticed that drones now can have certain behaviors, such as strafing a target with a weapon. I saw an .sbc file pertaining to this.

Is there some documentation of how this actually works? Is it purely coded by the devs in a programmable block or can you call out certain behavior, or is it just automatically inherited?

Thanks in advance for the clarification.

Oh, and let me summon @Malware on this. I'm "devious" like that.