Important chats also includes chats with mentions

telega-customize.el

@@ -468,7 +468,7 @@ If CHAT-FILTER matches chat, that chat gets CUSTOM-LABEL."
     ("Groups" . (type basicgroup supergroup))
     ("Channels" . (type channel))
     ("Contacts" . contact)
-    ("Important" . (and unread unmuted))
+    ("Important" . (or mention (and unread unmuted)))
     ("📑Archive" . archive))
   "*Alist of custom filters in form (NAME . FILTER).
 TODO: If NAME starts with \"lng_\" then `telega-i18n' is used."

telega-root.el

@@ -125,9 +125,10 @@
     ;; 
     ;;   {{{fundoc(telega-root-next-important)}}}
     ;; 
-    ;;   Important message is unseen message in chat with enabled
-    ;;   notifications. i.e. matching ~(and unread unmuted)~
-    ;;   [[#chat-filters][chat filter]].
+    ;;   Important message is the messages matching "Important" custom
+    ;;   [[#chat-filters][chat filter]].  If there is no "Important"
+    ;;   custom chat filter, then ~(or mention (and unread unmuted))~
+    ;;   chat filter is used.
     (define-key map (kbd "M-g i") 'telega-root-next-important)
 
     ;; - Key: {{{where-is(telega-root-next-mention,telega-root-mode-map)}}}
@@ -465,7 +466,9 @@ NEW-CHAT-P is used for optimization, to omit ewoc's node search."
 (defun telega-root-next-important (n)
   "Move point to the next chat with important messages."
   (interactive "p")
-  (telega-root-next-match-p '(and unread unmuted) n))
+  (let ((important-filter (or (cdr (assoc "Important" telega-filters-custom))
+                              '(or mention (and unread unmuted)))))
+    (telega-root-next-match-p important-filter n)))
 
 (defun telega-root-next-mention (n)
   "Move point to the next chat with mention."