--- a/doc/user/chat.rst	Sun Jun 08 17:29:10 2025 +0200
+++ b/doc/user/chat.rst	Sun Jun 08 17:29:39 2025 +0200
@@ -45,3 +45,11 @@
 keywords will show a submessage panel on the right side, where you'll see only messages
 with this keyword. If you write a message in this panel, the keyword will be automatically
 added to the message.
+
+Origin
+------
+
+If a message originates from a gateway to another protocol (e.g., email, SMS,
+ActivityPub), a label will indicate its origin. Clicking this label displays a submessage
+panel showing only messages from this source. If a message was generated by a bot (i.e.,
+an automated program), a corresponding label will appear.