How do I loop through multiple containers ?

How do I loop through multiple containers that each contains a bunch of stuff ?

Understand that I am not looping through stuff in a single container, I want to loop through multiple containers.

I am doing a table display that contain lots and lots of rolls generated real time with 9 columns each.

I don't understand the problem, sorry..

Picking an object inside the container references every other object inside the container automatically..

So a simple for each might even work depending on what you want..

That is correct, but I am not referencing to things INSIDE the container

There are MANY instances of these "containers" and I want to loop through all the containers, almost like "loop through all containers of type xxx".

Hope you understand that better

That is correct, but I am not referencing to things INSIDE the container

There are MANY instances of these "containers" and I want to loop through all the containers, almost like "loop through all containers of type xxx".

Hope you understand that better

As far as I understand:

Containers only consist of the objects that are inside them..

The container itself, isn't really an object..

So to pick a container, you should pick one of the objects inside..