How do I create sprite near two objects if they both are in the same family?

I have Bad_guys Family, it consists of many different sprites. Game creates 1 or two of them at the same time. I need show a specific sprite (skull) near each of them each time they are on screen.

The problem is when I make 'create skull when Bad_guys Family is visible' it only creates a skull sprite near one object but not near the second one. Any thoughts how can I fix this?

Yes, I use trigger once, but if i remove it skull is created infinitely. How can I use 'on created' properly?

It's a condition like 'is visible' but you need to remove the every tick and trigger once to use it.

Thanks lionz, it worked!