(define-key notmuch-show-mode-map "r" 'notmuch-show-reply)
(define-key notmuch-show-mode-map "R" 'notmuch-show-reply-sender)
-And in search mode:
+In search mode:
(define-key notmuch-search-mode-map "r" 'notmuch-search-reply-to-thread)
(define-key notmuch-search-mode-map "R" 'notmuch-search-reply-to-thread-sender)
+And in tree mode:
+
+ (define-key notmuch-tree-mode-map "r" (notmuch-tree-close-message-pane-and #'notmuch-show-reply))
+ (define-key notmuch-tree-mode-map "R" (notmuch-tree-close-message-pane-and #'notmuch-show-reply-sender))
## How to do FCC/BCC...