Thank you all for are your answers, I think all of them works for me but more important I learned a lot about sorting and data structures.

I am working now on adapting that code to my (bigger) program.

I will post that part of the code once done if you think it may be useful for anyone.

In reply to Re^2: Complex sort of array of hashes into an array of arrays by BioJL
in thread Complex sort of array of hashes into an array of arrays by BioJL

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