Correction to question: How do I merge multiple lines of footnotes into one?

[dublove]

Sorry.

 it seems to say to merge footnotes with the same content into one line

There are many such cases, for example:
[6] Originally cited in the original article.
[7] Originally cited in the original article.

[8] Originally cited in the original article.

Need to merge the same on the same line. Like this:

[6] [7] [8] [7] Originally cited in the original article.

It's now possible to optimize it with a script:

Convert the "superscripts" in the text to normal superscripts, and then delete the original superscripts?

@Robert at ID-Tasker 

@Barb Binder 

[Robert at ID-Tasker]

Text Variable. 

[dublove]

Footnotes with the same content are not consecutive. Using text variables can be a bit complicated, and I think it's better to just copy it honestly.

[Robert at ID-Tasker]

Don't have to be consecutive.

But contents can't be longer than a single line. 

[Barb Binder]

Hi @dublove 

Nothing wrong with copy/paste but you can do this with a cross-reference so that changing the first reference updates the second.

~Barb

[dublove]

Hi  Barb Binder 

Thank you

I initially thought of the quote as well.
But he's not just citing page numbers. He is needing the content to be the same.
I think it's rather insecure and unnecessary to copy security for such a complicated operation.