diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50cdba2c3..9e3a3c7a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Changed
 
 - **breaking:** alias: display an error with `/alias add` or `/alias addcompletion` when the alias already exists, add options `addreplace` and `addreplacecompletion` in command `/alias` ([#2095](https://github.com/weechat/weechat/issues/2095))
+- **breaking:** core: add option `addreplace` in command `/bar` ([#2095](https://github.com/weechat/weechat/issues/2095))
 - relay: enable websocket extension "permessage-deflate" with "api" relay only ([#1549](https://github.com/weechat/weechat/issues/1549))
 
 ### Added
diff --git a/po/cs.po b/po/cs.po
index 58634e9c7..0b0955def 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -289,6 +289,10 @@ msgstr "%sChyba: špatný typ \"%s\" pro pole \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sChyba: špatná pozice \"%s\" pro pole \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Pole \"%s\" zaktualizováno"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Pole \"%s\" vytvořeno"
@@ -1171,9 +1175,9 @@ msgstr "řídit pole"
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 #, fuzzy
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1195,6 +1199,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6235,10 +6242,6 @@ msgstr ""
 "položky pole, můžou být rozděleny čárkou (mezera mezi položkami) nebo \"+\" "
 "(slepené položky)"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Pole \"%s\" zaktualizováno"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/de.po b/po/de.po
index e307bc08e..8e18f7822 100644
--- a/po/de.po
+++ b/po/de.po
@@ -26,7 +26,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-05-31 20:32+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -327,6 +327,10 @@ msgstr "%sFalscher Typ \"%s\" für Bar \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sUngültige Position \"%s\" für Bar \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Infobar \"%s\" aktualisiert"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Infobar \"%s\" erstellt"
@@ -1184,10 +1188,17 @@ msgid "manage bars"
 msgstr "Infobars verwalten"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
+#, fuzzy
+#| msgid ""
+#| "list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
+#| "<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
+#| "nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+#| "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
+#| "scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1209,6 +1220,13 @@ msgstr "raw[listitems]: listet alle Bar-Items auf"
 msgid "raw[add]: add a new bar"
 msgstr "raw[add]: fügt eine neue Bar hinzu"
 
+#, fuzzy
+#| msgid "raw[addreplace]: add or replace an existing filter"
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+"raw[addreplace]: neuen Filter anlegen oder einen schon existierenden Filter "
+"ersetzen"
+
 msgid "name: name of bar (must be unique)"
 msgstr "name: Name der Bar (muss einzigartig sein)"
 
@@ -7089,10 +7107,6 @@ msgstr ""
 "erweiterte Syntax,\"@buffer:item\", kann genutzt werden um den Inhalt eines "
 "Items auf den angegeben Buffer bezogen anzuzeigen"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Infobar \"%s\" aktualisiert"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/es.po b/po/es.po
index 16c97b0d2..221ad4847 100644
--- a/po/es.po
+++ b/po/es.po
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Santiago Forero <santiago@forero.xyz>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -341,6 +341,10 @@ msgstr "%sError: tipo \"%s\" incorrecto para la barra \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sError: posición \"%s\" incorrecta para la barra \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Barra \"%s\" actualizada"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Barra \"%s\" creada"
@@ -1240,9 +1244,9 @@ msgstr "gestionar las barras"
 #| "nicklist] || del <name>|-all || set <name> <option> <value> || hide|show|"
 #| "toggle <name> || scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1264,6 +1268,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6416,10 +6423,6 @@ msgstr ""
 "elementos de la barra, pueden estar separados por coma (espacio entre "
 "elementos) o \"+\" (elementos pegados entre sí)"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Barra \"%s\" actualizada"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/fr.po b/po/fr.po
index 73c09293e..0e634c706 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -21,8 +21,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
-"PO-Revision-Date: 2024-06-09 09:44+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
+"PO-Revision-Date: 2024-06-09 10:12+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -312,6 +312,10 @@ msgstr "%sType invalide \"%s\" pour la barre \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sPosition invalide \"%s\" pour la barre \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Barre \"%s\" mise à jour"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Barre \"%s\" créée"
@@ -1169,17 +1173,17 @@ msgstr "gestion des barres"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
-"list|listfull|listitems || add <nom> <type>[,<conditions>] <position> "
-"<taille> <séparateur> <objet1>[,<objet2>...] || default [input|title|status|"
-"nicklist] || rename <nom> <nouveau_nom> || del <nom>|<masque> [<nom>|"
-"<masque>...] || set <nom> <option> <valeur> || hide|show|toggle <nom> || "
-"scroll <nom> <fenêtre> <valeur_scroll>"
+"list|listfull|listitems || add|addreplace <nom> <type>[,<conditions>] "
+"<position> <taille> <séparateur> <objet1>[,<objet2>...] || default [input|"
+"title|status|nicklist] || rename <nom> <nouveau_nom> || del <nom>|<masque> "
+"[<nom>|<masque>...] || set <nom> <option> <valeur> || hide|show|toggle <nom> "
+"|| scroll <nom> <fenêtre> <valeur_scroll>"
 
 msgid "raw[list]: list all bars"
 msgstr "raw[list] : lister toutes les barres"
@@ -1193,6 +1197,9 @@ msgstr "raw[listitems] : lister tous les objets de barre"
 msgid "raw[add]: add a new bar"
 msgstr "raw[add] : ajouter une nouvelle barre"
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr "raw[addreplace] : ajouter ou remplacer une barre existante"
+
 msgid "name: name of bar (must be unique)"
 msgstr "nom : nom de la barre (doit être unique)"
 
@@ -6945,10 +6952,6 @@ msgstr ""
 "peut être utilisée pour forcer le tampon utilisé lors de l'affichage de "
 "l'objet de barre"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Barre \"%s\" mise à jour"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/hu.po b/po/hu.po
index 86b0df5a4..ae5461891 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -262,6 +262,10 @@ msgstr "%s rossz argumentum szám a \"%s\" parancsnak\n"
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%s ismeretlen opció a \"%s\" parancsnak\n"
 
+#, fuzzy, c-format
+msgid "Bar \"%s\" updated"
+msgstr "A \"%s\" => \"%s\" aliasz elkészült\n"
+
 #, fuzzy, c-format
 msgid "Bar \"%s\" created"
 msgstr "A \"%s\" => \"%s\" aliasz elkészült\n"
@@ -1131,9 +1135,9 @@ msgstr "pufferek kezelése"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1150,6 +1154,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -5919,10 +5926,6 @@ msgid ""
 "used when displaying the bar item"
 msgstr ""
 
-#, fuzzy, c-format
-msgid "Bar \"%s\" updated"
-msgstr "A \"%s\" => \"%s\" aliasz elkészült\n"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/it.po b/po/it.po
index ad3840d13..24293d613 100644
--- a/po/it.po
+++ b/po/it.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -265,6 +265,10 @@ msgstr "%sErrore: tipo \"%s\" errato per la barra \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sErrore: posizione \"%s\" errata per la barra \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Barra \"%s\" aggiornata"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Barra \"%s\" creata"
@@ -1143,9 +1147,9 @@ msgstr "gestione delle barre"
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 #, fuzzy
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1166,6 +1170,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6368,10 +6375,6 @@ msgstr ""
 "elementi della barra, possono essere separati da virgola (spazio tra gli "
 "elementi) o \"+\" (elementi incollati)"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Barra \"%s\" aggiornata"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/ja.po b/po/ja.po
index 47c0c1760..9f0bb0fa2 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -309,6 +309,10 @@ msgstr "%1$sエラー: バー \"%3$s\" にタイプ \"%2$s\" は使えません"
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%1$sエラー: バー \"%3$s\" に位置 \"%2$s\" を設定できません"
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "バー \"%s\" がアップデートされました"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "バー \"%s\" が作成されました"
@@ -1197,9 +1201,9 @@ msgstr "バーの管理"
 #| "nicklist] || del <name>|-all || set <name> <option> <value> || hide|show|"
 #| "toggle <name> || scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1220,6 +1224,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6541,10 +6548,6 @@ msgstr ""
 "合) 区切り; 特殊構文 \"@buffer:item\" でバー要素を表示する際にバッファを利用"
 "することを強制する"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "バー \"%s\" がアップデートされました"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/pl.po b/po/pl.po
index 5387cde14..9e4c93480 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-06-01 22:06+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -311,6 +311,10 @@ msgstr "%sNieprawidłowy typ \"%s\" dla paska \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sZła pozycja \"%s\" dla paska \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Uaktualniono pasek \"%s\""
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Utworzono pasek \"%s\""
@@ -1166,10 +1170,17 @@ msgid "manage bars"
 msgstr "zarządzaj paskami"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
+#, fuzzy
+#| msgid ""
+#| "list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
+#| "<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
+#| "nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+#| "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
+#| "scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1191,6 +1202,11 @@ msgstr "raw[listitems]: wyświetl wszystkie elementy pasków"
 msgid "raw[add]: add a new bar"
 msgstr "raw[add]: dodaj nowy pasek"
 
+#, fuzzy
+#| msgid "raw[addreplace]: add or replace an existing filter"
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr "raw[addreplace]: dodaj lub zastąp istniejący filtr"
+
 msgid "name: name of bar (must be unique)"
 msgstr "nazwa: nazwa paska (musi być unikalna)"
 
@@ -6732,10 +6748,6 @@ msgstr ""
 "lub \"+\" (skleja elementy); specjalna składnia \"@buffer:item\" może być "
 "użyta w celu wymuszenia bufora używanego podczas wyświetlania elementu paska"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Uaktualniono pasek \"%s\""
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/pt.po b/po/pt.po
index 902d32725..95bc5d53c 100644
--- a/po/pt.po
+++ b/po/pt.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -291,6 +291,10 @@ msgstr "%sErro: tipo incorreto \"%s\" da barra \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sErro: posição incorreta \"%s\" da barra \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Barra \"%s\" atualizada"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Barra \"%s\" criada"
@@ -1189,9 +1193,9 @@ msgstr "gerir barras"
 #| "nicklist] || del <name>|-all || set <name> <option> <value> || hide|show|"
 #| "toggle <name> || scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1212,6 +1216,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6600,10 +6607,6 @@ msgstr ""
 "\"+\" (itens colados); pode usar a sintaxe especial \"@buffer:item\" para "
 "forçar o buffer utilizado para mostrar o item"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Barra \"%s\" atualizada"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/pt_BR.po b/po/pt_BR.po
index aa58bad5f..ed5015af1 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Érico Nogueira <ericonr@disroot.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -298,6 +298,10 @@ msgstr "%sErro: tipo \"%s\" errado para barra \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sErro: posição \"%s\" errada para barra \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Barra \"%s\" atualizada"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Barra \"%s\" criada"
@@ -1180,9 +1184,9 @@ msgstr "gerenciar barras"
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 #, fuzzy
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1203,6 +1207,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6288,10 +6295,6 @@ msgstr ""
 "itens da barra, podem ser separados por vírgula (espaço entre itens) ou \"+"
 "\" (itens \"colados\")"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Barra \"%s\" atualizada"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/ru.po b/po/ru.po
index c48034f93..8864d65e4 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -266,6 +266,10 @@ msgstr "%s некорректное количество аргументов к
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%s неизвестный параметр для команды \"%s\"\n"
 
+#, fuzzy, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Сокращение \"%s\" => \"%s\" создано\n"
+
 #, fuzzy, c-format
 msgid "Bar \"%s\" created"
 msgstr "Сокращение \"%s\" => \"%s\" создано\n"
@@ -1153,9 +1157,9 @@ msgstr "управление буферами"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1172,6 +1176,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -5959,10 +5966,6 @@ msgid ""
 "used when displaying the bar item"
 msgstr ""
 
-#, fuzzy, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Сокращение \"%s\" => \"%s\" создано\n"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/sr.po b/po/sr.po
index 2b5c5b34b..3074443f3 100644
--- a/po/sr.po
+++ b/po/sr.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-05-07 14:00+0400\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -313,6 +313,10 @@ msgstr "%sНеважећи тип „%s” за траку „%s”"
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sНеважећа позиција „%s” за траку „%s”"
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "Ажурирана је „%s”"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "Креирана је трака „%s”"
@@ -1158,10 +1162,17 @@ msgid "manage bars"
 msgstr "управљање тракама"
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
+#, fuzzy
+#| msgid ""
+#| "list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
+#| "<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
+#| "nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+#| "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
+#| "scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1183,6 +1194,11 @@ msgstr "raw[listitems]: приказује све ставке траке"
 msgid "raw[add]: add a new bar"
 msgstr "raw[add]: додаје нову траку"
 
+#, fuzzy
+#| msgid "raw[addreplace]: add or replace an existing filter"
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr "raw[addreplace]: додаје или замењује постојећи филтер"
+
 msgid "name: name of bar (must be unique)"
 msgstr "име: име траке (мора бити јединствено)"
 
@@ -6723,10 +6739,6 @@ msgstr ""
 "„+”(слепљене ставке); може да да користи специјална синтакса „@бафер:ставка” "
 "да се форсира бафер када се приказује ставка траке"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "Ажурирана је „%s”"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/tr.po b/po/tr.po
index 69933984b..f3b5fd362 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2024-04-07 14:50+0200\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -331,6 +331,10 @@ msgstr "%sŞu çubuk için hatalı tür \"%s\": \"%s\""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr "%sŞu çubuk için hatalı konum \"%s\": \"%s\""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr "\"%s\" çubuğu güncellendi"
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr "\"%s\" çubuğu oluşturuldu"
@@ -1207,9 +1211,9 @@ msgstr "çubukları yönet"
 #| "nicklist] || del <name>|-all || set <name> <option> <value> || hide|show|"
 #| "toggle <name> || scroll <name> <window> <scroll_value>"
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1230,6 +1234,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -6615,10 +6622,6 @@ msgstr ""
 "(yapıştırılan ögeler); çubuk ögesini görüntülerken kullanılacak arabellek "
 "\"@buffer:item\" özel sözdizimiyle zorlanabilir"
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr "\"%s\" çubuğu güncellendi"
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/po/weechat.pot b/po/weechat.pot
index e28151c5b..ad4da5d2b 100644
--- a/po/weechat.pot
+++ b/po/weechat.pot
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2024-06-09 10:04+0200\n"
+"POT-Creation-Date: 2024-06-09 10:12+0200\n"
 "PO-Revision-Date: 2014-08-16 10:27+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -241,6 +241,10 @@ msgstr ""
 msgid "%sInvalid position \"%s\" for bar \"%s\""
 msgstr ""
 
+#, c-format
+msgid "Bar \"%s\" updated"
+msgstr ""
+
 #, c-format
 msgid "Bar \"%s\" created"
 msgstr ""
@@ -1043,9 +1047,9 @@ msgstr ""
 
 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
 msgid ""
-"list|listfull|listitems || add <name> <type>[,<conditions>] <position> "
-"<size> <separator> <item1>[,<item2>...] || default [input|title|status|"
-"nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
+"list|listfull|listitems || add|addreplace <name> <type>[,<conditions>] "
+"<position> <size> <separator> <item1>[,<item2>...] || default [input|title|"
+"status|nicklist] || rename <name> <new_name> || del <name>|<mask> [<name>|"
 "<mask>...] || set <name> <option> <value> || hide|show|toggle <name> || "
 "scroll <name> <window> <scroll_value>"
 msgstr ""
@@ -1062,6 +1066,9 @@ msgstr ""
 msgid "raw[add]: add a new bar"
 msgstr ""
 
+msgid "raw[addreplace]: add or replace an existing bar"
+msgstr ""
+
 msgid "name: name of bar (must be unique)"
 msgstr ""
 
@@ -5508,10 +5515,6 @@ msgid ""
 "used when displaying the bar item"
 msgstr ""
 
-#, c-format
-msgid "Bar \"%s\" updated"
-msgstr ""
-
 #, c-format
 msgid "debug: long callback: bar: %s, item: %s, plugin: %s, time elapsed: %s"
 msgstr ""
diff --git a/src/core/core-command.c b/src/core/core-command.c
index ffceb7a33..a68702402 100644
--- a/src/core/core-command.c
+++ b/src/core/core-command.c
@@ -237,7 +237,7 @@ command_bar_list (int full)
 
 COMMAND_CALLBACK(bar)
 {
-    int i, type, position, number;
+    int i, type, position, number, update;
     long value;
     char *error, *str_type, *pos_condition, *name;
     struct t_gui_bar *ptr_bar, *ptr_bar2, *ptr_next_bar;
@@ -287,17 +287,28 @@ COMMAND_CALLBACK(bar)
     }
 
     /* add a new bar */
-    if (string_strcmp (argv[1], "add") == 0)
+    if ((string_strcmp (argv[1], "add") == 0)
+        || (string_strcmp (argv[1], "addreplace") == 0))
     {
-        COMMAND_MIN_ARGS(8, "add");
+        COMMAND_MIN_ARGS(8, argv[1]);
+        update = 0;
         ptr_bar = gui_bar_search (argv[2]);
         if (ptr_bar)
         {
-            gui_chat_printf (NULL,
-                             _("%sBar \"%s\" already exists"),
-                             gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
-                             argv[2]);
-            return WEECHAT_RC_OK;
+            if (string_strcmp (argv[1], "addreplace") == 0)
+            {
+                update = 1;
+                gui_bar_free (ptr_bar);
+                gui_bar_create_default_input ();
+            }
+            else
+            {
+                gui_chat_printf (NULL,
+                                 _("%sBar \"%s\" already exists"),
+                                 gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+                                 argv[2]);
+                return WEECHAT_RC_OK;
+            }
         }
         pos_condition = strchr (argv[3], ',');
         if (pos_condition)
@@ -361,8 +372,10 @@ COMMAND_CALLBACK(bar)
                     argv[6],       /* separators */
                     argv_eol[7]))  /* items */
             {
-                gui_chat_printf (NULL, _("Bar \"%s\" created"),
-                                 argv[2]);
+                gui_chat_printf (
+                    NULL,
+                    (update) ? _("Bar \"%s\" updated") : _("Bar \"%s\" created"),
+                    argv[2]);
             }
             else
             {
@@ -7948,7 +7961,8 @@ command_init ()
         N_("manage bars"),
         /* TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated */
         N_("list|listfull|listitems"
-           " || add <name> <type>[,<conditions>] <position> <size> <separator> "
+           " || add|addreplace <name> <type>[,<conditions>] <position> <size> "
+           "<separator> "
            "<item1>[,<item2>...]"
            " || default [input|title|status|nicklist]"
            " || rename <name> <new_name>"
@@ -7961,6 +7975,7 @@ command_init ()
             N_("raw[listfull]: list all bars (verbose)"),
             N_("raw[listitems]: list all bar items"),
             N_("raw[add]: add a new bar"),
+            N_("raw[addreplace]: add or replace an existing bar"),
             N_("name: name of bar (must be unique)"),
             N_("type: type of bar:"),
             N_("> raw[root]: outside windows"),
@@ -8005,7 +8020,7 @@ command_init ()
         "list"
         " || listfull"
         " || listitems"
-        " || add %(bars_names) root|window bottom|top|left|right"
+        " || add|addreplace %(bars_names) root|window bottom|top|left|right"
         " || default input|title|status|nicklist|%*"
         " || rename %(bars_names)"
         " || del %(bars_names)|%*"