Interactive buttons to docstrings in Help buffers

Heime <[email protected]> Wed, 15 Apr 2026 10:47:30 +0000

Newsgroups	gmane.emacs.help
Message-ID	<mvuKg6kCNi1b4AW9ULmlSqsllZSX-7P15SLm0pA6KBivK6GYOIEEsEwZZGwDp-VB93RuSQvv1CwE5NRAuNwWAVHUkd7P-TjWpkyHVWpUY7M=@protonmail.com>

How can I add a button at the end of a docstring in the *Help* buffer 
to display additional documentation?  

Similar to the "Show the value of this option" when using "M-x customize".

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