I have added information on how to exit a narrowing. I could have used this 
information when I started using org-narrow-to-subtree.
From 680fbfc0a91552c5d73e853effadeaa683266ec9 Mon Sep 17 00:00:00 2001
From: Yuval Langer <yuvallangeronther...@proton.me>
Date: Thu, 24 Nov 2022 19:27:00 +0200
Subject: [PATCH] Explain how to remove restrictions (narrowing) from current
 buffer.

---
 lisp/org.el | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/lisp/org.el b/lisp/org.el
index 64b33e597..45650efb5 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -7220,7 +7220,8 @@ If yes, remember the marker and the distance to BEG."
   (setq org-markers-to-move nil))
 
 (defun org-narrow-to-subtree (&optional element)
-  "Narrow buffer to the current subtree."
+  "Narrow buffer to the current subtree.
+   Use the command M-x widen <RET> to see the whole buffer again."
   (interactive)
   (if (org-element--cache-active-p)
       (let* ((heading (org-element-lineage
@@ -7242,7 +7243,8 @@ If yes, remember the marker and the distance to BEG."
 	         (point))))))))
 
 (defun org-toggle-narrow-to-subtree ()
-  "Narrow to the subtree at point or widen a narrowed buffer."
+  "Narrow to the subtree at point or widen a narrowed buffer.
+   Use the command M-x widen <RET> to see the whole buffer again."
   (interactive)
   (if (buffer-narrowed-p)
       (progn (widen) (message "Buffer widen"))
@@ -7250,7 +7252,8 @@ If yes, remember the marker and the distance to BEG."
     (message "Buffer narrowed to current subtree")))
 
 (defun org-narrow-to-block ()
-  "Narrow buffer to the current block."
+  "Narrow buffer to the current block.
+   Use the command M-x widen <RET> to see the whole buffer again."
   (interactive)
   (let* ((case-fold-search t)
 	 (blockp (org-between-regexps-p "^[ \t]*#\\+begin_.*"
@@ -21162,7 +21165,8 @@ ones already marked."
 	(goto-char (org-element-property :begin element))))))
 
 (defun org-narrow-to-element ()
-  "Narrow buffer to current element."
+  "Narrow buffer to current element.
+   Use the command M-x widen <RET> to see the whole buffer again."
   (interactive)
   (let ((elem (org-element-at-point)))
     (cond
-- 
2.30.2

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