On Sun 2019-08-25 12:02:05 +0200, Gregor Zattler wrote:
> Dear notmuch developers, when reading a long going discussion
> which is deeply threaded, it often would come in handy if it was
> possible to jump up to the parent message of the message on is
> reading, unfolding this message in notmuch-show if necessary.
> This command notmuch-show-message-up or
> notmuch-show-parent-message could be bound to "u" since this key
> is not used in notmuch-show-mode-map.

I would also like this feature!  (sorry i don't have the elisp-fu to
implement it myself, just adding a +1 here)

          --dkg