How do I reference objects?

I'm not sure if this is what I'm looking for, but I think my problem is that I can't find out how I reference other objects.

I want to destroy only the particles that are pinned to a bullet object when the bullet is off-screen, but the system destroys all of the particles when one of the bullets is off-screen.

So it works well when you only have 1 bullet on-screen, but if there's more than 1 bullet, the fire effects of the other bullets are also getting removed.

So what I want is to only destroy the objects that are pinned to the bullets that are not on-screen.

I'm not very good at explaining my problem, but here's a .capx I've created in 5 minutes to demonstrate my problem: https://www.mediafire.com/?zyrrpu58rubrjd8 (remember to open "Layout 1" before running the project, I always have different "storage" layouts to store the objects that need to be created by the system.)

I hope someone can help me out.

Make the bullet and particles a container. They get created and destroyed together.

Here's more information about "families" in construct 2 and how they work:

https://www.scirra.com/manual/142/families

I think that'll help you along.

Thanks codah and rezagamertag, I will look more into the things both of you've mentioned. Creating a container seemed to do the trick

Cool