Modifying a Roller Conveyor

I have a roller conveyor where I would like to easily modify its length using the move tool.
What I want to happen is when I extend the length of the side rails (in black) I want the rollers to dynamically duplicate themselves. If I want to make the conveyor built shorter, I’d like the rollers to delete themselves to the appropriate length. Any suggestions on how to achieve this?

I achieved the above by shortening the side rails but I had to manually delete the rollers.

Thanks guys.


I think you can sort this out by applying the same technique that’s used in the Repeating a sub-component within a dynamic component tutorial.

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Thanks Jim, I’ll have a look.