Splitting of "Add entry using PDFs"?

I have started to update the section entitled "Add entry using PDFs" (https://docs.jabref.org/collect/findunlinkedfiles).
In fact, most of it is about "Add PDFs to existing entries" (section entitled "Mass-link PDFs").
So, I propose to split this file into two files:

• "Add entry using PDFs" (that will be short)
• "Add PDFs to existing entries"

To my mind "Add PDFs to existing entries" will stay in the chapter "Collect" (it might be moved to the section "Organize")

Any thought?

PS: What does the following sentence means?
In the concrete case, \bibtexkey only may be the better option as the described citation key already contains the title.
(last sentence of the file).
Is it In the concrete case, \bibtexkey only may be the best option as the entry already contains the title.?

Start by reading the findunlinkedfiles documentation page and compare the “Add entry using PDFs” and “Mass-link PDFs” sections. Split the content into the proposed “Add entry using PDFs” and “Add PDFs to existing entries” files or sections, decide whether the latter remains under Collect, and clarify the final \bibtexkey sentence.