On Jan 4, 2024, at 2:39 AM, Eli Zaretskii <eliz@gnu.org> wrote:

Please describe in more detail how would people use this for their
personal "quick help", because I don't think I understand well enough
what you have in mind.

For example, an org user may

(add-to-list 'help-quick-sections

'("Org"

(org-ctrl-c-star . "Compute table/change heading ")

(org-ctrl-c-ret . "Table hline/insert heading")))

so that from org-buffers, C-h C-q adds a new section:

Org

C-c * Compute table/change heading

C-c RET Table hline/insert heading

Most likely users willing to customize `help-quick-sections’ would remove existing sections with commands they know well.

In any case, such a change will need suitable changes for
documentation.

Do you mean documentation for the `help-quick-sections' variable? How about turning this into a defcustom? This would allow more advanced users to fully customize what “quick help” they want.