All Array Fields as 1 Input

Hello Guys, is it possible to combine all bundle ids as 1 input?
At hte moment it always creats 1 with only 1 input and overwrites it when the next bundle is processed in gpt.

But i want to say: Take all Bundles and work with them and get one output from all bundles

PS: I tried join, but i think thats not the right way?

@Chris_O
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