How do I spawn set of objects?

How do I spawn set of objects?

Let's say I have family. I want to go through all objects and clone each of them.

I have no idea how to do this.

Thanks for any help

and if there any way of dynamic picking objects? I mean not hard-coded name of object, but some variable instead of name?

With family you can set a value to their family instance variable and then spawn only those Who have this value.

This does not work. Spawns random objects

Same problem.