diff --git a/doc/de/autogen/user/fset_options.adoc b/doc/de/autogen/user/fset_options.adoc
index 59e8c01b2..2ce0d02a6 100644
--- a/doc/de/autogen/user/fset_options.adoc
+++ b/doc/de/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** Standardwert: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** Beschreibung: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** Beschreibung: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** Typ: Zeichenkette
 ** Werte: beliebige Zeichenkette
-** Standardwert: `+"${marked} ${name}  ${type}  ${value2}"+`
+** Standardwert: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** Beschreibung: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** Beschreibung: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** Typ: Zeichenkette
 ** Werte: beliebige Zeichenkette
 ** Standardwert: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/doc/en/autogen/user/fset_options.adoc b/doc/en/autogen/user/fset_options.adoc
index b39e86bdd..313c19db4 100644
--- a/doc/en/autogen/user/fset_options.adoc
+++ b/doc/en/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** default value: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** description: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** description: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** type: string
 ** values: any string
-** default value: `+"${marked} ${name}  ${type}  ${value2}"+`
+** default value: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** description: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** description: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** type: string
 ** values: any string
 ** default value: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/doc/fr/autogen/user/fset_options.adoc b/doc/fr/autogen/user/fset_options.adoc
index 70c61c619..6ec173624 100644
--- a/doc/fr/autogen/user/fset_options.adoc
+++ b/doc/fr/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** valeur par défaut: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** description: pass:none[premier format de chaque ligne avec une option qui n'est pas marquée ni sélectionnée (note : le contenu est évalué, voir /help fset) ; les formats peuvent être changés avec la touche ctrl+X]
+** description: pass:none[premier format de chaque ligne avec une option qui n'est pas marquée ni sélectionnée (note : le contenu est évalué, voir /help fset) ; un format vide utilise le format pré-défini ("${marked} ${name}  ${type}  ${value2}"), qui se fait sans évaluation de chaîne et donc plus rapide ; les formats peuvent être changés avec la touche ctrl+X]
 ** type: chaîne
 ** valeurs: toute chaîne
-** valeur par défaut: `+"${marked} ${name}  ${type}  ${value2}"+`
+** valeur par défaut: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** description: pass:none[second format de chaque ligne avec une option qui n'est pas marquée ni sélectionnée (note : le contenu est évalué, voir /help fset) ; les formats peuvent être changés avec la touche ctrl+X]
+** description: pass:none[second format de chaque ligne avec une option qui n'est pas marquée ni sélectionnée (note : le contenu est évalué, voir /help fset) ; un format vide utilise le format pré-défini ("${marked} ${name}  ${type}  ${value2}"), qui se fait sans évaluation de chaîne et donc plus rapide ; les formats peuvent être changés avec la touche ctrl+X]
 ** type: chaîne
 ** valeurs: toute chaîne
 ** valeur par défaut: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/doc/it/autogen/user/fset_options.adoc b/doc/it/autogen/user/fset_options.adoc
index e290c8127..e0d9c9ac9 100644
--- a/doc/it/autogen/user/fset_options.adoc
+++ b/doc/it/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** valore predefinito: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** descrizione: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** descrizione: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** tipo: stringa
 ** valori: qualsiasi stringa
-** valore predefinito: `+"${marked} ${name}  ${type}  ${value2}"+`
+** valore predefinito: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** descrizione: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** descrizione: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** tipo: stringa
 ** valori: qualsiasi stringa
 ** valore predefinito: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/doc/ja/autogen/user/fset_options.adoc b/doc/ja/autogen/user/fset_options.adoc
index f0689df82..95642b10a 100644
--- a/doc/ja/autogen/user/fset_options.adoc
+++ b/doc/ja/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** デフォルト値: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** 説明: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** 説明: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** タイプ: 文字列
 ** 値: 未制約文字列
-** デフォルト値: `+"${marked} ${name}  ${type}  ${value2}"+`
+** デフォルト値: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** 説明: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** 説明: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** タイプ: 文字列
 ** 値: 未制約文字列
 ** デフォルト値: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/doc/pl/autogen/user/fset_options.adoc b/doc/pl/autogen/user/fset_options.adoc
index 63f6312d4..f1f12916d 100644
--- a/doc/pl/autogen/user/fset_options.adoc
+++ b/doc/pl/autogen/user/fset_options.adoc
@@ -393,13 +393,13 @@
 ** domyślna wartość: `+"/unset ${name}"+`
 
 * [[option_fset.format.option1]] *fset.format.option1*
-** opis: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** opis: pass:none[first format of each line with an option which is not marked nor the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** typ: ciąg
 ** wartości: dowolny ciąg
-** domyślna wartość: `+"${marked} ${name}  ${type}  ${value2}"+`
+** domyślna wartość: `+""+`
 
 * [[option_fset.format.option2]] *fset.format.option2*
-** opis: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); formats can be switched with key ctrl+X]
+** opis: pass:none[second format of each line with an option which is not marked not the selected one (note: content is evaluated, see /help fset); an empty string uses the predefined format ("${marked} ${name}  ${type}  ${value2}"), which is without evaluation of string and then much faster; formats can be switched with key ctrl+X]
 ** typ: ciąg
 ** wartości: dowolny ciąg
 ** domyślna wartość: `+"${marked} ${name}  ${type}  ${value2}${newline}  ${empty_name}  ${_default_value}${color:darkgray} -- ${min}..${max}${newline}  ${empty_name}  ${description}"+`
diff --git a/po/cs.po b/po/cs.po
index 4f9fbbf0c..16f9f6898 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:32+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5732,13 +5732,17 @@ msgstr "zobrazí nápovědu k příkazům a volbám"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/de.po b/po/de.po
index 9cb46038f..88dcb3fe8 100644
--- a/po/de.po
+++ b/po/de.po
@@ -19,7 +19,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:32+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -6891,13 +6891,17 @@ msgstr "Zeigt einen Hilfstext für Befehle und Einstellungen an"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/es.po b/po/es.po
index 6dcf52e82..7864cf651 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:32+0200\n"
 "Last-Translator: Elián Hanisch <lambdae2@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5948,13 +5948,17 @@ msgstr "mostrar ayuda sobre los comandos y opciones"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/fr.po b/po/fr.po
index deb0e1192..0caa1f290 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: 2017-06-26 23:32+0200\n"
-"PO-Revision-Date: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
+"PO-Revision-Date: 2017-06-28 22:03+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -6959,21 +6959,29 @@ msgstr "utiliser la commande /mute pour définir les options"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 "premier format de chaque ligne avec une option qui n'est pas marquée ni "
-"sélectionnée (note : le contenu est évalué, voir /help fset) ; les formats "
-"peuvent être changés avec la touche ctrl+X"
+"sélectionnée (note : le contenu est évalué, voir /help fset) ; un format "
+"vide utilise le format par défaut (\"${marked} ${name}  ${type}  "
+"${value2}\"), qui se fait sans évaluation de chaîne et donc plus rapide ; "
+"les formats peuvent être changés avec la touche ctrl+X"
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 "second format de chaque ligne avec une option qui n'est pas marquée ni "
-"sélectionnée (note : le contenu est évalué, voir /help fset) ; les formats "
-"peuvent être changés avec la touche ctrl+X"
+"sélectionnée (note : le contenu est évalué, voir /help fset) ; un format "
+"vide utilise le format par défaut (\"${marked} ${name}  ${type}  "
+"${value2}\"), qui se fait sans évaluation de chaîne et donc plus rapide ; "
+"les formats peuvent être changés avec la touche ctrl+X"
 
 msgid ""
 "format of help line written before each option exported in a file (note: "
diff --git a/po/hu.po b/po/hu.po
index aeb754e25..ea642fd46 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:32+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5265,13 +5265,17 @@ msgstr "segítség megjelenítése a parancsokhoz"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/it.po b/po/it.po
index 73d5f4d26..5bb950344 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:32+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -6119,13 +6119,17 @@ msgstr "visualizza l'aiuto su comandi e opzioni"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/ja.po b/po/ja.po
index 1cca50b13..112496587 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -6453,13 +6453,17 @@ msgstr "コマンドとオプションに関するヘルプを表示"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/pl.po b/po/pl.po
index 4946fcb29..781f6c82a 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -6590,13 +6590,17 @@ msgstr "wyświetl pomoc na temat komend i opcji"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/pt.po b/po/pt.po
index 8f1e2285a..6aa3bf80c 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -6479,13 +6479,17 @@ msgstr "mostrar ajuda sobre comandos e opções"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 439b5904f..f0c244b75 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: Eduardo Elias <camponez@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5912,13 +5912,17 @@ msgstr "mostra a ajuda sobre comandos e opções"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/ru.po b/po/ru.po
index 63353744a..759247151 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -5303,13 +5303,17 @@ msgstr "отобразить помощь по командам"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/tr.po b/po/tr.po
index 65a7edfa3..d89ce88d2 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+0200\n"
 "PO-Revision-Date: 2017-06-26 23:33+0200\n"
 "Last-Translator: Hasan Kiran <sunder67@hotmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -4847,13 +4847,17 @@ msgstr "komutlar ve seçenekler hakkında yardım göster"
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/po/weechat.pot b/po/weechat.pot
index e1a4d70d6..33d64fd0a 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: 2017-06-26 23:32+0200\n"
+"POT-Creation-Date: 2017-06-28 22:02+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"
@@ -4823,13 +4823,17 @@ msgstr ""
 
 msgid ""
 "first format of each line with an option which is not marked nor the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
 msgid ""
 "second format of each line with an option which is not marked not the "
-"selected one (note: content is evaluated, see /help fset); formats can be "
+"selected one (note: content is evaluated, see /help fset); an empty string "
+"uses the default format (\"${marked} ${name}  ${type}  ${value2}\"), which "
+"is without evaluation of string and then much faster; formats can be "
 "switched with key ctrl+X"
 msgstr ""
 
diff --git a/src/plugins/fset/fset-buffer.c b/src/plugins/fset/fset-buffer.c
index a8ced404a..4d9bc8597 100644
--- a/src/plugins/fset/fset-buffer.c
+++ b/src/plugins/fset/fset-buffer.c
@@ -107,16 +107,22 @@ fset_buffer_set_title ()
  *
  * If fill_right == 1, fills with spaces on the right. Otherwise
  * fills with spaces on the left before the value.
+ *
+ * If skip_colors == 1, the field value may contain color codes, so
+ * weechat_strlen_screen() is used instead of weechat_utf8_strlen_screen()
+ * and then the functions is slower.
  */
 
 void
-fset_buffer_fills_field (char *field, char *field_spaces, int size,
-                         int max_length, int fill_right)
+fset_buffer_fills_field (char *field, char *field_spaces,
+                         int size, int max_length,
+                         int fill_right, int skip_colors)
 {
     int length, length_screen, num_spaces;
 
     length = strlen (field);
-    length_screen = weechat_strlen_screen (field);
+    length_screen = (skip_colors) ?
+        weechat_strlen_screen (field) : weechat_utf8_strlen_screen (field);
 
     if (max_length > size - 1)
         max_length = size - 1;
@@ -142,18 +148,21 @@ fset_buffer_fills_field (char *field, char *field_spaces, int size,
     }
 
     /* field with spaces */
-    memset (field_spaces, ' ', max_length);
-    field_spaces[max_length] = '\0';
+    if (field_spaces)
+    {
+        memset (field_spaces, ' ', max_length);
+        field_spaces[max_length] = '\0';
+    }
 }
 
 /*
- * Displays a line with an fset option.
+ * Displays a line with an fset option using an evaluated format.
  */
 
 void
-fset_buffer_display_option (struct t_fset_option *fset_option)
+fset_buffer_display_option_eval (struct t_fset_option *fset_option)
 {
-    char *line, str_color_line[128], *color_line, **lines;
+    char *line, str_color_line[128], **lines;
     char str_field[4096], str_field2[4096];
     char str_color_value[128], str_color_quotes[128], str_number[64];
     int selected_line, y, i, num_lines;
@@ -188,7 +197,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_file", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->file, 1);
+                             fset_option_max_length->file, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "file", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -209,7 +218,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_section", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->section, 1);
+                             fset_option_max_length->section, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "section", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -230,7 +239,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_option", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->option, 1);
+                             fset_option_max_length->option, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "option", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -251,7 +260,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_name", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->name, 1);
+                             fset_option_max_length->name, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "name", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -268,7 +277,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_parent_name", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->parent_name, 1);
+                             fset_option_max_length->parent_name, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "parent_name", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -286,7 +295,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_type", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->type, 1);
+                             fset_option_max_length->type, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "type", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -304,7 +313,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_type_en", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->type_en, 1);
+                             fset_option_max_length->type_en, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "type_en", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -322,7 +331,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_type_short", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->type_short, 1);
+                             fset_option_max_length->type_short, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "type_short", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -340,7 +349,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_type_tiny", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->type_tiny, 1);
+                             fset_option_max_length->type_tiny, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "type_tiny", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -370,7 +379,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_default_value", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->default_value, 1);
+                             fset_option_max_length->default_value, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "default_value", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -439,7 +448,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_value", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->value, 1);
+                             fset_option_max_length->value, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "value", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -473,7 +482,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "_value2", str_field);
         fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                                 fset_option_max_length->value2, 1);
+                                 fset_option_max_length->value2, 1, 1);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "value2", str_field);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -497,7 +506,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "_value2", str_field);
         fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                                 fset_option_max_length->value2, 1);
+                                 fset_option_max_length->value2, 1, 1);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "value2", str_field);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -524,7 +533,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "_parent_value", str_field);
         fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                                 fset_option_max_length->parent_value, 1);
+                                 fset_option_max_length->parent_value, 1, 1);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "parent_value", str_field);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -538,7 +547,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "_parent_value", str_field);
         fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                                 fset_option_max_length->parent_value, 1);
+                                 fset_option_max_length->parent_value, 1, 1);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                                "parent_value", str_field);
         weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -556,7 +565,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_min", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->min, 1);
+                             fset_option_max_length->min, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "min", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -573,7 +582,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_max", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->max, 1);
+                             fset_option_max_length->max, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "max", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -591,7 +600,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_description", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->description, 1);
+                             fset_option_max_length->description, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "description", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -609,7 +618,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_description2", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->description2, 1);
+                             fset_option_max_length->description2, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "description2", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -626,7 +635,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_description_en", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->description_en, 1);
+                             fset_option_max_length->description_en, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "description_en", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -644,7 +653,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_description_en2", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->description_en2, 1);
+                             fset_option_max_length->description_en2, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "description_en2", str_field);
 
@@ -659,7 +668,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_string_values", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->string_values, 1);
+                             fset_option_max_length->string_values, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "string_values", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -684,7 +693,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "_marked", str_field);
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             fset_option_max_length->marked, 1);
+                             fset_option_max_length->marked, 1, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "marked", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -703,7 +712,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
     snprintf (str_number, sizeof (str_number),
               "%d", weechat_arraylist_size (fset_options));
     fset_buffer_fills_field (str_field, str_field2, sizeof (str_field),
-                             strlen (str_number), 0);
+                             strlen (str_number), 0, 1);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
                            "index", str_field);
     weechat_hashtable_set (fset_buffer_hashtable_extra_vars,
@@ -728,7 +737,7 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
                            "newline", "\r\n");
 
     /* build string for line */
-    color_line = NULL;
+    str_color_line[0] = '\0';
     format_number = weechat_config_integer (fset_config_look_format_number);
     if (selected_line)
     {
@@ -736,7 +745,6 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
                   ",%s",
                   weechat_config_string (
                       fset_config_color_line_selected_bg[format_number - 1]));
-        color_line = strdup (weechat_color (str_color_line));
     }
     else if (fset_option->marked)
     {
@@ -744,7 +752,6 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
                   ",%s",
                   weechat_config_string (
                       fset_config_color_line_marked_bg[format_number - 1]));
-        color_line = strdup (weechat_color (str_color_line));
     }
 
     /* evaluate line */
@@ -761,18 +768,190 @@ fset_buffer_display_option (struct t_fset_option *fset_option)
             y = fset_option->index * fset_config_format_option_num_lines[format_number - 1];
             for (i = 0; i < num_lines; i++)
             {
-                weechat_printf_y (fset_buffer, y, "%s%s",
-                                  (color_line) ? color_line : "",
-                                  lines[i]);
+                weechat_printf_y (
+                    fset_buffer, y,
+                    "%s%s",
+                    (str_color_line[0]) ? weechat_color (str_color_line) : "",
+                    lines[i]);
                 y++;
             }
             weechat_string_free_split (lines);
         }
         free (line);
     }
+}
 
-    if (color_line)
-        free (color_line);
+/*
+ * Displays a line with an fset option using a predefined format
+ * (much faster because there is no eval).
+ */
+
+void
+fset_buffer_display_option_predefined_format (struct t_fset_option *fset_option)
+{
+    int selected_line, value_undef, value_changed, format_number;
+    int add_quotes, add_quotes_parent;
+    char str_marked[128], str_name[4096], str_type[128], str_value[4096];
+    char str_color_line[128], str_color_value[128], str_color_quotes[128];
+
+    selected_line = (fset_option->index == fset_buffer_selected_line) ? 1 : 0;
+    value_undef = (fset_option->value == NULL) ? 1 : 0;
+    value_changed = (fset_option_value_is_changed (fset_option)) ? 1 : 0;
+    format_number = weechat_config_integer (fset_config_look_format_number);
+
+    str_color_line[0] = '\0';
+    if (selected_line)
+    {
+        snprintf (str_color_line, sizeof (str_color_line),
+                  ",%s",
+                  weechat_config_string (
+                      fset_config_color_line_selected_bg[format_number - 1]));
+    }
+    else if (fset_option->marked)
+    {
+        snprintf (str_color_line, sizeof (str_color_line),
+                  ",%s",
+                  weechat_config_string (
+                      fset_config_color_line_marked_bg[format_number - 1]));
+    }
+
+    snprintf (str_marked, sizeof (str_marked),
+              "%s",
+              (fset_option->marked) ?
+              weechat_config_string (fset_config_look_marked_string) :
+              weechat_config_string (fset_config_look_unmarked_string));
+    fset_buffer_fills_field (str_marked, NULL, sizeof (str_marked),
+                             fset_option_max_length->marked, 1, 0);
+
+    snprintf (str_name, sizeof (str_name),
+              "%s",
+              (fset_option->name) ? fset_option->name : "");
+    fset_buffer_fills_field (str_name, NULL, sizeof (str_name),
+                             fset_option_max_length->name, 1, 0);
+
+    snprintf (str_type, sizeof (str_type),
+              "%s",
+              _(fset_option_type_string[fset_option->type]));
+    fset_buffer_fills_field (str_type, NULL, sizeof (str_type),
+                             fset_option_max_length->type, 1, 0);
+
+    add_quotes = (fset_option->value && (fset_option->type == FSET_OPTION_TYPE_STRING)) ? 1 : 0;
+    if ((fset_option->type == FSET_OPTION_TYPE_COLOR)
+        && weechat_config_boolean (fset_config_look_use_color_value))
+    {
+        snprintf (str_color_value, sizeof (str_color_value),
+                  "%s",
+                  weechat_color (fset_option->value));
+    }
+    else if (value_undef)
+    {
+        snprintf (str_color_value, sizeof (str_color_value),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_value_undef[selected_line])));
+        snprintf (str_color_quotes, sizeof (str_color_quotes),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_quotes[selected_line])));
+    }
+    else if (value_changed)
+    {
+        snprintf (str_color_value, sizeof (str_color_value),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_value_changed[selected_line])));
+        snprintf (str_color_quotes, sizeof (str_color_quotes),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_quotes_changed[selected_line])));
+    }
+    else
+    {
+        snprintf (str_color_value, sizeof (str_color_value),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_value[selected_line])));
+        snprintf (str_color_quotes, sizeof (str_color_quotes),
+                  "%s",
+                  weechat_color (
+                      weechat_config_string (
+                          fset_config_color_quotes[selected_line])));
+    }
+    if (value_undef && fset_option->parent_value)
+    {
+        add_quotes_parent = (fset_option->parent_value && (fset_option->type == FSET_OPTION_TYPE_STRING)) ? 1 : 0;
+        snprintf (str_value, sizeof (str_value),
+                  "%s%s%s%s%s%s%s -> %s%s%s%s%s%s",
+                  (add_quotes) ? str_color_quotes : "",
+                  (add_quotes) ? "\"" : "",
+                  str_color_value,
+                  (fset_option->value) ? fset_option->value : FSET_OPTION_VALUE_NULL,
+                  (add_quotes) ? str_color_quotes : "",
+                  (add_quotes) ? "\"" : "",
+                  weechat_color ("default"),
+                  (add_quotes_parent) ? weechat_color (weechat_config_string (fset_config_color_quotes[selected_line])) : "",
+                  (add_quotes_parent) ? "\"" : "",
+                  weechat_color (weechat_config_string (fset_config_color_parent_value[selected_line])),
+                  (fset_option->parent_value) ? fset_option->parent_value : FSET_OPTION_VALUE_NULL,
+                  (add_quotes_parent) ? weechat_color (weechat_config_string (fset_config_color_quotes[selected_line])) : "",
+                  (add_quotes_parent) ? "\"" : "");
+    }
+    else
+    {
+        snprintf (str_value, sizeof (str_value),
+                  "%s%s%s%s%s%s",
+                  (add_quotes) ? str_color_quotes : "",
+                  (add_quotes) ? "\"" : "",
+                  str_color_value,
+                  (fset_option->value) ? fset_option->value : FSET_OPTION_VALUE_NULL,
+                  (add_quotes) ? str_color_quotes : "",
+                  (add_quotes) ? "\"" : "");
+    }
+
+    weechat_printf_y (
+        fset_buffer, fset_option->index,
+        "%s%s%s %s%s  %s%s  %s",
+        (str_color_line[0]) ? weechat_color (str_color_line) : "",
+        (fset_option->marked) ?
+        weechat_color (
+            weechat_config_string (fset_config_color_marked[selected_line])) :
+        weechat_color (
+            weechat_config_string (fset_config_color_unmarked[selected_line])),
+        str_marked,
+        weechat_color (
+            weechat_config_string (
+                (value_changed) ?
+                fset_config_color_name_changed[selected_line] :
+                fset_config_color_name[selected_line])),
+        str_name,
+        weechat_color (
+            weechat_config_string (fset_config_color_type[selected_line])),
+        str_type,
+        str_value);
+}
+
+/*
+ * Displays a line with an fset option.
+ */
+
+void
+fset_buffer_display_option (struct t_fset_option *fset_option)
+{
+    int format_number;
+    const char *ptr_format;
+
+    format_number = weechat_config_integer (fset_config_look_format_number);
+    ptr_format = weechat_config_string (fset_config_format_option[format_number - 1]);
+
+    if (ptr_format && ptr_format[0])
+        fset_buffer_display_option_eval (fset_option);
+    else
+        fset_buffer_display_option_predefined_format (fset_option);
 }
 
 /*
diff --git a/src/plugins/fset/fset-config.c b/src/plugins/fset/fset-config.c
index 650c277e5..8cc9d1690 100644
--- a/src/plugins/fset/fset-config.c
+++ b/src/plugins/fset/fset-config.c
@@ -460,10 +460,13 @@ fset_config_init ()
         "option1", "string",
         N_("first format of each line with an option which is not marked "
            "nor the selected one "
-           "(note: content is evaluated, see /help fset); formats can be "
-           "switched with key ctrl+X"),
+           "(note: content is evaluated, see /help fset); "
+           "an empty string uses the default format "
+           "(\"${marked} ${name}  ${type}  ${value2}\"), which is without "
+           "evaluation of string and then much faster; "
+           "formats can be switched with key ctrl+X"),
         NULL, 0, 0,
-        "${marked} ${name}  ${type}  ${value2}",
+        "",
         NULL, 0,
         NULL, NULL, NULL,
         &fset_config_change_format_cb, NULL, NULL,
@@ -474,6 +477,9 @@ fset_config_init ()
         N_("second format of each line with an option which is not marked "
            "not the selected one "
            "(note: content is evaluated, see /help fset); "
+           "an empty string uses the default format "
+           "(\"${marked} ${name}  ${type}  ${value2}\"), which is without "
+           "evaluation of string and then much faster; "
            "formats can be switched with key ctrl+X"),
         NULL, 0, 0,
         "${marked} ${name}  ${type}  ${value2}${newline}"
diff --git a/src/plugins/fset/fset-option.c b/src/plugins/fset/fset-option.c
index b95a62415..8ee364374 100644
--- a/src/plugins/fset/fset-option.c
+++ b/src/plugins/fset/fset-option.c
@@ -573,61 +573,61 @@ fset_option_set_max_length_fields_option (struct t_fset_option *fset_option)
     int length, length_value, length_parent_value;
 
     /* file */
-    length = weechat_strlen_screen (fset_option->file);
+    length = weechat_utf8_strlen_screen (fset_option->file);
     if (length > fset_option_max_length->file)
         fset_option_max_length->file = length;
 
     /* section */
-    length = weechat_strlen_screen (fset_option->section);
+    length = weechat_utf8_strlen_screen (fset_option->section);
     if (length > fset_option_max_length->section)
         fset_option_max_length->section = length;
 
     /* option */
-    length = weechat_strlen_screen (fset_option->option);
+    length = weechat_utf8_strlen_screen (fset_option->option);
     if (length > fset_option_max_length->option)
         fset_option_max_length->option = length;
 
     /* name */
-    length = weechat_strlen_screen (fset_option->name);
+    length = weechat_utf8_strlen_screen (fset_option->name);
     if (length > fset_option_max_length->name)
         fset_option_max_length->name = length;
 
     /* parent_name */
     length = (fset_option->parent_name) ?
-        weechat_strlen_screen (fset_option->name) : 0;
+        weechat_utf8_strlen_screen (fset_option->name) : 0;
     if (length > fset_option_max_length->parent_name)
         fset_option_max_length->parent_name = length;
 
     /* type */
-    length = weechat_strlen_screen (_(fset_option_type_string[fset_option->type]));
+    length = weechat_utf8_strlen_screen (_(fset_option_type_string[fset_option->type]));
     if (length > fset_option_max_length->type)
         fset_option_max_length->type = length;
 
     /* type_en */
-    length = weechat_strlen_screen (fset_option_type_string[fset_option->type]);
+    length = weechat_utf8_strlen_screen (fset_option_type_string[fset_option->type]);
     if (length > fset_option_max_length->type_en)
         fset_option_max_length->type_en = length;
 
     /* type_short */
-    length = weechat_strlen_screen (fset_option_type_string_short[fset_option->type]);
+    length = weechat_utf8_strlen_screen (fset_option_type_string_short[fset_option->type]);
     if (length > fset_option_max_length->type_short)
         fset_option_max_length->type_short = length;
 
     /* type_tiny */
-    length = weechat_strlen_screen (fset_option_type_string_tiny[fset_option->type]);
+    length = weechat_utf8_strlen_screen (fset_option_type_string_tiny[fset_option->type]);
     if (length > fset_option_max_length->type_tiny)
         fset_option_max_length->type_tiny = length;
 
     /* default_value */
     if (fset_option->default_value)
     {
-        length = weechat_strlen_screen (fset_option->default_value);
+        length = weechat_utf8_strlen_screen (fset_option->default_value);
         if (fset_option->type == FSET_OPTION_TYPE_STRING)
             length += 2;
     }
     else
     {
-        length = weechat_strlen_screen (FSET_OPTION_VALUE_NULL);
+        length = weechat_utf8_strlen_screen (FSET_OPTION_VALUE_NULL);
     }
     if (length > fset_option_max_length->default_value)
         fset_option_max_length->default_value = length;
@@ -635,13 +635,13 @@ fset_option_set_max_length_fields_option (struct t_fset_option *fset_option)
     /* value */
     if (fset_option->value)
     {
-        length_value = weechat_strlen_screen (fset_option->value);
+        length_value = weechat_utf8_strlen_screen (fset_option->value);
         if (fset_option->type == FSET_OPTION_TYPE_STRING)
             length_value += 2;
     }
     else
     {
-        length_value = weechat_strlen_screen (FSET_OPTION_VALUE_NULL);
+        length_value = weechat_utf8_strlen_screen (FSET_OPTION_VALUE_NULL);
     }
     if (length_value > fset_option_max_length->value)
         fset_option_max_length->value = length_value;
@@ -649,13 +649,13 @@ fset_option_set_max_length_fields_option (struct t_fset_option *fset_option)
     /* parent_value */
     if (fset_option->parent_value)
     {
-        length_parent_value = weechat_strlen_screen (fset_option->parent_value);
+        length_parent_value = weechat_utf8_strlen_screen (fset_option->parent_value);
         if (fset_option->type == FSET_OPTION_TYPE_STRING)
             length_parent_value += 2;
     }
     else
     {
-        length_parent_value = weechat_strlen_screen (FSET_OPTION_VALUE_NULL);
+        length_parent_value = weechat_utf8_strlen_screen (FSET_OPTION_VALUE_NULL);
     }
     if (length_parent_value > fset_option_max_length->parent_value)
         fset_option_max_length->parent_value = length_parent_value;
@@ -668,50 +668,50 @@ fset_option_set_max_length_fields_option (struct t_fset_option *fset_option)
         fset_option_max_length->value2 = length;
 
     /* min */
-    length = weechat_strlen_screen (fset_option->min);
+    length = weechat_utf8_strlen_screen (fset_option->min);
     if (length > fset_option_max_length->min)
         fset_option_max_length->min = length;
 
     /* max */
-    length = weechat_strlen_screen (fset_option->max);
+    length = weechat_utf8_strlen_screen (fset_option->max);
     if (length > fset_option_max_length->max)
         fset_option_max_length->max = length;
 
     /* description */
     length = (fset_option->description && fset_option->description[0]) ?
-        weechat_strlen_screen (_(fset_option->description)) : 0;
+        weechat_utf8_strlen_screen (_(fset_option->description)) : 0;
     if (length > fset_option_max_length->description)
         fset_option_max_length->description = length;
 
     /* description2 */
-    length = weechat_strlen_screen (
+    length = weechat_utf8_strlen_screen (
         (fset_option->description && fset_option->description[0]) ?
         _(fset_option->description) : _("(no description)"));
     if (length > fset_option_max_length->description2)
         fset_option_max_length->description2 = length;
 
     /* description_en */
-    length = weechat_strlen_screen (fset_option->description);
+    length = weechat_utf8_strlen_screen (fset_option->description);
     if (length > fset_option_max_length->description_en)
         fset_option_max_length->description_en = length;
 
     /* description_en2 */
-    length = weechat_strlen_screen (
+    length = weechat_utf8_strlen_screen (
         (fset_option->description && fset_option->description[0]) ?
         fset_option->description : _("(no description)"));
     if (length > fset_option_max_length->description_en2)
         fset_option_max_length->description_en2 = length;
 
     /* string_values */
-    length = weechat_strlen_screen (fset_option->string_values);
+    length = weechat_utf8_strlen_screen (fset_option->string_values);
     if (length > fset_option_max_length->string_values)
         fset_option_max_length->string_values = length;
 
     /* marked */
-    length = weechat_strlen_screen (weechat_config_string (fset_config_look_marked_string));
+    length = weechat_utf8_strlen_screen (weechat_config_string (fset_config_look_marked_string));
     if (length > fset_option_max_length->marked)
         fset_option_max_length->marked = length;
-    length = weechat_strlen_screen (weechat_config_string (fset_config_look_unmarked_string));
+    length = weechat_utf8_strlen_screen (weechat_config_string (fset_config_look_unmarked_string));
     if (length > fset_option_max_length->marked)
         fset_option_max_length->marked = length;
 }