How do I many stones on lines with collision object

Hi,

I want to create stones joint into end of line and with stones collision object. When player shot on line the stone fall and line stay (or play animation).

Problem is i want to create this objects from events. When i set event: Bullet on collision with line, i want to cut stone and collision object but engine didnt know witch stone and col to cut and doint it with every created objects. How to tie this created in event objects?

Can you attach your capx file? We need to know how exactly you implement that collision and cut feature on your game.