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Hi
I am not sure I understand. It sounds like you either want a table of content that you can add at the top, or footnotes, which are at the bottom?
WordPress has a footnote block that you can use. If you need a table of content, then you need to install a plugin.

no, I apologize for being unclear, I just found the solution here https://www.ads-software.com/documentation/article/page-jumps/
Thank you very much for the very fast response
Regards