How do I draw a line between two image points. "lightning"

I saw a thread a while back and I got to thinking that being able to draw a line or link sprites together to connect points should be easy.. Just not easy enough for me to figure out. Does anyone know how to do this?

I've included a link to a creative guide, I just don't know how to translate it to C2.

http://drilian.com/2009/02/25/lightning-bolts/

Double click on the sprite, add "Set origin and image points" and add to both ends of the lightning segment.

On the sprite add Behaviour > Pin

This way you can move one and move the rest. Then on each branch of the lightning rotate segments of the lightning

It's not the same thing but i made a fractal tree before. It could give ideas.