core: add example of splith and merge in /help window

20 files changed, 272 insertions, 175 deletions

diff --git a/doc/de/autogen/user/weechat_commands.adoc b/doc/de/autogen/user/weechat_commands.adoc
index 719a1661b..a8a642f5d 100644
--- a/doc/de/autogen/user/weechat_commands.adoc
+++ b/doc/de/autogen/user/weechat_commands.adoc
@@ -949,50 +949,54 @@ Beispiele:
          zoom [-window <number>]
          bare [<delay>]
 
-         list: listet die geöffneten Fenster (ohne Angabe von Argumente wird diese Liste standardmäßig ausgegeben)
-           -1: springt zum vorherigen Fenster
-           +1: springt zum nächsten Fenster
-           b#: springt zum nächsten Fenster, welches die Buffer Nummer # besitzt
-           up: wechselt zum Fenster über dem aktuellen
-         down: wechselt zum Fenster unter dem aktuellen
-         left: wechselt zum linken Fenster
-        right: wechselt zum rechten Fenster
-       number: Nummer des Fensters (siehe /window list)
-       splith: teilt das aktuelle Fenster horizontal
-       splitv: teilt das aktuelle Fenster vertikal
-       resize: verändert die Größe des aktuellen Fensters. Die neue Größe des Fensters ist prozentual <pct> zum Stammfensters groß
-      balance: passt die Größe aller Fenster an
-        merge: vereinigt Fenster miteinander (all = alle Fenster vereinigen)
-      page_up: scrollt eine Seite nach oben
-    page_down: scrollt eine Seite nach unten
-      refresh: Seite wird neu aufgebaut
-       scroll: scrollt eine Anzahl an Zeilen (+/-N) oder zu einer angegebenen Zeit: s=Sekunden, m=Minuten, h=Stunden, d=Tage, M=Monate, y=Jahre
- scroll_horiz: scrollt horizontal eine Anzahl an Spalten (+/-N) oder prozentual von der Fenstergröße ausgehend (dieses scrolling ist nur in Buffern möglich die über einen freien Inhalt verfügen)
-    scroll_up: scrollt ein paar Zeilen nach oben
-  scroll_down: scrollt ein paar Zeilen nach unten
-   scroll_top: scrollt zum Anfang des Buffers
-scroll_bottom: scrollt zum Ende des Buffers
-scroll_beyond_end: scrollt über das Ende des Buffers hinaus
-scroll_previous_highlight: scrollt zum vorherigen Hightlight
-scroll_next_highlight: scrollt zum nächsten Highlight
-scroll_unread: springt zur ersten ungelesenen Zeile in einem Buffer
-         swap: tauscht die Buffer von zwei Fenstern (mit optionaler Angabe für das Zielfenster)
-         zoom: vergrößert ein Fenster auf 100%
-         bare: wechselt zum einfachen Anzeigemodus (optional kann eine Wartezeit, in Sekunden, angegeben werden, wann zum Standardmodus zurück gewechselt werden soll)
-
-Bei splith und splitv gibt "pct" die neue Größe des Fensters im Verhältnis zur aktuellen Größe an. Zum Beispiel würde ein Wert von 25 bedeuten, dass das neue Fenster nur noch ein Viertel der Größe des alten Fensters besitzt.
-
-Beispiele:
-  springt zum Fenster mit dem Buffer #1:
+         list: list opened windows (without argument, this list is displayed)
+           -1: jump to previous window
+           +1: jump to next window
+           b#: jump to next window displaying buffer number #
+           up: switch to window above current one
+         down: switch to window below current one
+         left: switch to window on the left
+        right: switch to window on the right
+       number: window number (see /window list)
+       splith: split current window horizontally (to undo: /window merge)
+       splitv: split current window vertically (to undo: /window merge)
+       resize: resize window size, new size is <pct> percentage of parent window
+      balance: balance the sizes of all windows
+        merge: merge window with another (all = keep only one window)
+      page_up: scroll one page up
+    page_down: scroll one page down
+      refresh: refresh screen
+       scroll: scroll a number of lines (+/-N) or with time: s=seconds, m=minutes, h=hours, d=days, M=months, y=years
+ scroll_horiz: scroll horizontally a number of columns (+/-N) or percentage of window size (this scrolling is possible only on buffers with free content)
+    scroll_up: scroll a few lines up
+  scroll_down: scroll a few lines down
+   scroll_top: scroll to top of buffer
+scroll_bottom: scroll to bottom of buffer
+scroll_beyond_end: scroll beyond the end of buffer
+scroll_previous_highlight: scroll to previous highlight
+scroll_next_highlight: scroll to next highlight
+scroll_unread: scroll to unread marker
+         swap: swap buffers of two windows (with optional direction for target window)
+         zoom: zoom on window
+         bare: toggle bare display (with optional delay in seconds for automatic return to standard display mode)
+
+For splith and splitv, pct is a percentage which represents size of new window, computed with current window as size reference. For example 25 means create a new window with size = current_size / 4
+
+Examples:
+  jump to window displaying buffer #1:
     /window b1
-   scrollt zwei Zeilen hoch:
+  scroll 2 lines up:
     /window scroll -2
-  scrollt zwei Tage hoch: /window scroll -2d
+  scroll 2 days up:
     /window scroll -2d
-  scrollt zum Beginn des aktuellen Tages:
+  scroll to beginning of current day:
     /window scroll -d
-  Fenster #2 wird vergrößert:
+  zoom on window #2:
     /window zoom -window 2
-  aktiviert den einfachen Anzeigemodus für zwei Sekunden:
+  split window horizontally using 30%% of space for the window on top:
+    /window splith 30
+  remove the split:
+    /window merge
+  enable bare display for 2 seconds:
     /window bare 2
 ----
diff --git a/doc/en/autogen/user/weechat_commands.adoc b/doc/en/autogen/user/weechat_commands.adoc
index 65f626662..0b74ddb67 100644
--- a/doc/en/autogen/user/weechat_commands.adoc
+++ b/doc/en/autogen/user/weechat_commands.adoc
@@ -958,8 +958,8 @@ Examples:
          left: switch to window on the left
         right: switch to window on the right
        number: window number (see /window list)
-       splith: split current window horizontally
-       splitv: split current window vertically
+       splith: split current window horizontally (to undo: /window merge)
+       splitv: split current window vertically (to undo: /window merge)
        resize: resize window size, new size is <pct> percentage of parent window
       balance: balance the sizes of all windows
         merge: merge window with another (all = keep only one window)
@@ -993,6 +993,10 @@ Examples:
     /window scroll -d
   zoom on window #2:
     /window zoom -window 2
+  split window horizontally using 30%% of space for the window on top:
+    /window splith 30
+  remove the split:
+    /window merge
   enable bare display for 2 seconds:
     /window bare 2
 ----
diff --git a/doc/fr/autogen/user/weechat_commands.adoc b/doc/fr/autogen/user/weechat_commands.adoc
index 719adc925..03305b712 100644
--- a/doc/fr/autogen/user/weechat_commands.adoc
+++ b/doc/fr/autogen/user/weechat_commands.adoc
@@ -958,8 +958,8 @@ Exemples :
          left : sauter à la fenêtre à gauche
         right : sauter à la fenêtre à droite
        numéro : numéro de fenêtre (voir /window list)
-       splith : éclater la fenêtre en deux horizontalement
-       splitv : éclater la fenêtre en deux verticalement
+       splith : éclater la fenêtre en deux horizontalement (pour défaire : /window merge)
+       splitv : éclater la fenêtre en deux verticalement (pour défaire : /window merge)
        resize : redimensionner une fenêtre, la nouvelle taille est <pct> pourcentage de la fenêtre parent
       balance : équilibrer la taille de toutes les fenêtres
         merge : fusionner la fenêtre avec une autre
@@ -993,6 +993,10 @@ Exemples :
     /window scroll -d
   zoom sur la fenêtre numéro 2 :
     /window zoom -window 2
+  éclater la fenêtre horizontalement en utilisant 30%% de l'espace pour la fenêtre du haut :
+    /window splith 30
+  supprimer l'éclatement :
+    /window merge
   activer le mode d'affichage dépouillé pendant 2 secondes :
     /window bare 2
 ----
diff --git a/doc/it/autogen/user/weechat_commands.adoc b/doc/it/autogen/user/weechat_commands.adoc
index 8c3396bce..f9251ae57 100644
--- a/doc/it/autogen/user/weechat_commands.adoc
+++ b/doc/it/autogen/user/weechat_commands.adoc
@@ -958,8 +958,8 @@ Esempi:
          left: switch to window on the left
         right: switch to window on the right
        number: window number (see /window list)
-       splith: split current window horizontally
-       splitv: split current window vertically
+       splith: split current window horizontally (to undo: /window merge)
+       splitv: split current window vertically (to undo: /window merge)
        resize: resize window size, new size is <pct> percentage of parent window
       balance: balance the sizes of all windows
         merge: merge window with another (all = keep only one window)
@@ -993,6 +993,10 @@ Examples:
     /window scroll -d
   zoom on window #2:
     /window zoom -window 2
+  split window horizontally using 30%% of space for the window on top:
+    /window splith 30
+  remove the split:
+    /window merge
   enable bare display for 2 seconds:
     /window bare 2
 ----
diff --git a/doc/ja/autogen/user/weechat_commands.adoc b/doc/ja/autogen/user/weechat_commands.adoc
index 9c008b5ee..ac54751d6 100644
--- a/doc/ja/autogen/user/weechat_commands.adoc
+++ b/doc/ja/autogen/user/weechat_commands.adoc
@@ -949,50 +949,54 @@ command: 実行するコマンド (コマンドが '/' で始まらない場合�
          zoom [-window <number>]
          bare [<delay>]
 
-         list: 開けられたウィンドウのリストアップ (引数無しの場合、このリストが表示されます)
-           -1: 前のウィンドウに移動
-           +1: 次のウィンドウに移動
-           b#: バッファ番号 # のウィンドウに移動
-           up: 現在のウィンドウの上のウィンドウに移動
-         down: 現在のウィンドウの下のウィンドウに移動
-         left: 左のウィンドウに移動
-        right: 右のウィンドウに移動
-       number: ウィンドウ番号 (/window list を参照)
-       splith: 現在のウィンドウを水平分割
-       splitv: 現在のウィンドウを垂直分割
-       resize: ウィンドウサイズの変更、新しいサイズは親ウィンドウの <pct> パーセントで指定
-      balance: 全てのウィンドウのサイズを均等にする
-        merge: ウィンドウを他のものをマージする (all = 一つのウィンドウにまとめる)
-      page_up: 1 ページ分上方向にスクロール
-    page_down: 1 ページ分下方向にスクロール
-      refresh: 画面のリフレッシュ
-       scroll: 指定行数 (+/-N) か指定期間 (s=秒、m=分、h=時間、d=日、M=月、y=年) スクロール
- scroll_horiz: 指定列数 (+/-N) かウィンドウサイズの割合で水平方向にスクロール (フリーコンテンツを含むバッファ以外は無効)
-    scroll_up: 数行分上方向にスクロール
-  scroll_down: 数行分下方向にスクロール
-   scroll_top: バッファの一番上にスクロール
-scroll_bottom: バッファの一番下にスクロール
-scroll_beyond_end: バッファの末尾を越えてスクロール
-scroll_previous_highlight: 一つ前のハイライトにスクロール
-scroll_next_highlight: 次のハイライトにスクロール
-scroll_unread: 未読マーカにスクロール
-         swap: 2 つのウィンドウのバッファを入れ替え (ターゲットウィンドウの方向を任意指定)
-         zoom: ウィンドウを拡大
-         bare: 最小限表示を切り替える (自動的に標準表示モードに戻るまでの時間を秒単位で任意指定)
-
-splith と splitv に関しては、pct は新しいウィンドウのパーセンテージで、現在のウィンドウサイズに対する割合で計算されます。例えば 25 は size = current_size / 4 の新しいウィンドウを作成します。
-
-例:
-  バッファ #1 を表示しているウィンドウに移動:
+         list: list opened windows (without argument, this list is displayed)
+           -1: jump to previous window
+           +1: jump to next window
+           b#: jump to next window displaying buffer number #
+           up: switch to window above current one
+         down: switch to window below current one
+         left: switch to window on the left
+        right: switch to window on the right
+       number: window number (see /window list)
+       splith: split current window horizontally (to undo: /window merge)
+       splitv: split current window vertically (to undo: /window merge)
+       resize: resize window size, new size is <pct> percentage of parent window
+      balance: balance the sizes of all windows
+        merge: merge window with another (all = keep only one window)
+      page_up: scroll one page up
+    page_down: scroll one page down
+      refresh: refresh screen
+       scroll: scroll a number of lines (+/-N) or with time: s=seconds, m=minutes, h=hours, d=days, M=months, y=years
+ scroll_horiz: scroll horizontally a number of columns (+/-N) or percentage of window size (this scrolling is possible only on buffers with free content)
+    scroll_up: scroll a few lines up
+  scroll_down: scroll a few lines down
+   scroll_top: scroll to top of buffer
+scroll_bottom: scroll to bottom of buffer
+scroll_beyond_end: scroll beyond the end of buffer
+scroll_previous_highlight: scroll to previous highlight
+scroll_next_highlight: scroll to next highlight
+scroll_unread: scroll to unread marker
+         swap: swap buffers of two windows (with optional direction for target window)
+         zoom: zoom on window
+         bare: toggle bare display (with optional delay in seconds for automatic return to standard display mode)
+
+For splith and splitv, pct is a percentage which represents size of new window, computed with current window as size reference. For example 25 means create a new window with size = current_size / 4
+
+Examples:
+  jump to window displaying buffer #1:
     /window b1
-  2 行分上方向にスクロール:
+  scroll 2 lines up:
     /window scroll -2
-  2 日分上方向にスクロール:
+  scroll 2 days up:
     /window scroll -2d
-  今日の最初にスクロール:
+  scroll to beginning of current day:
     /window scroll -d
-  ウィンドウ #2 を拡大:
+  zoom on window #2:
     /window zoom -window 2
-  最小限表示を 2 秒間有効にする:
+  split window horizontally using 30%% of space for the window on top:
+    /window splith 30
+  remove the split:
+    /window merge
+  enable bare display for 2 seconds:
     /window bare 2
 ----
diff --git a/doc/pl/autogen/user/weechat_commands.adoc b/doc/pl/autogen/user/weechat_commands.adoc
index d90064424..d45176cbb 100644
--- a/doc/pl/autogen/user/weechat_commands.adoc
+++ b/doc/pl/autogen/user/weechat_commands.adoc
@@ -949,50 +949,54 @@ Przykłady:
          zoom[-window <numer>]
          bare [<opóźnienie>]
 
-         list: lista otwartych okien (bez argumentu wyświetlana jest ta lista)
-           -1: skok do poprzedniego okna
-           +1: skok do następnego okna
-           b#: skok do następnego okna pokazującego bufor o numerze #
-           up: przełączenie na okno ponad obecnym
-         down: przełączenie na okno pod obecnym
-         left: przełączenie na okno po lewej
-        right: przełączenie na okno po prawej
-       numer: okno numer (zobacz /window list)
-       splith: dzieli obecne okno poziomo
-       splitv: dzieli obecne okno pionowo
-       resize: zmienia rozmiar okna, nowy rozmiar to <pct> procent okna nadrzędnego
-      balance: balansuje rozmiary pomiędzy oknami
-        merge: łączy okno z innym (all = posiadanie tylko jednego okna)
-      page_up: przewija stronę do góry
-    page_down: przewija stronę w dół
-      refresh: odświeża ekran
-       scroll: przewija ilość linii (+/-N) lub o czas: s=sekundy, m=minuty, h=godziny, d=dni, M=miesiące, y=lata
- scroll_horiz: przewija poziomo ilość kolumn (+/-N) lub procent rozmiaru okna (takie przewijanie jest możliwe tylko w buforach z wolną zawartością)
-    scroll_up: przewija kilka linii w gorę
-  scroll_down: przewija kilka linii w dół
-   scroll_top: przewija na samą górę bufora
-scroll_bottom: przewija na spód bufora
-scroll_beyond_end: przewija poza koniec bufora
-scroll_previous_highlight: przewija do poprzedniego highlighta
-scroll_next_highlight: przewija do następnego highlighta
-scroll_unread: przewija do znacznika nie przeczytania
-         swap: zamienia bufory między dwoma oknami (z opcjonalnym kierunkiem dla docelowego okna)
-         zoom: powiększa okno
-         bare: przełącza niesformatowane wysiwetlanie (z opcjonalnym czasem, po jakim nastąpi automatyczny powrót do standardowego trybu)
-
-Dla splith i splitv, pct oznacza procent reprezentujący rozmiar nowego okna, porównany z obecnym oknem jako odniesieniem. Na przykład 25 oznacza utworzenie nowego okna o rozmiarze = obecny_rozmiar / 4
+         list: list opened windows (without argument, this list is displayed)
+           -1: jump to previous window
+           +1: jump to next window
+           b#: jump to next window displaying buffer number #
+           up: switch to window above current one
+         down: switch to window below current one
+         left: switch to window on the left
+        right: switch to window on the right
+       number: window number (see /window list)
+       splith: split current window horizontally (to undo: /window merge)
+       splitv: split current window vertically (to undo: /window merge)
+       resize: resize window size, new size is <pct> percentage of parent window
+      balance: balance the sizes of all windows
+        merge: merge window with another (all = keep only one window)
+      page_up: scroll one page up
+    page_down: scroll one page down
+      refresh: refresh screen
+       scroll: scroll a number of lines (+/-N) or with time: s=seconds, m=minutes, h=hours, d=days, M=months, y=years
+ scroll_horiz: scroll horizontally a number of columns (+/-N) or percentage of window size (this scrolling is possible only on buffers with free content)
+    scroll_up: scroll a few lines up
+  scroll_down: scroll a few lines down
+   scroll_top: scroll to top of buffer
+scroll_bottom: scroll to bottom of buffer
+scroll_beyond_end: scroll beyond the end of buffer
+scroll_previous_highlight: scroll to previous highlight
+scroll_next_highlight: scroll to next highlight
+scroll_unread: scroll to unread marker
+         swap: swap buffers of two windows (with optional direction for target window)
+         zoom: zoom on window
+         bare: toggle bare display (with optional delay in seconds for automatic return to standard display mode)
+
+For splith and splitv, pct is a percentage which represents size of new window, computed with current window as size reference. For example 25 means create a new window with size = current_size / 4
 
-Przykłady:
-  skok do okna wyświetlającego bufor #1:
+Examples:
+  jump to window displaying buffer #1:
     /window b1
-  przewiń 2 linie do góry:
+  scroll 2 lines up:
     /window scroll -2
-  przewiń 2 dni do góry:
+  scroll 2 days up:
     /window scroll -2d
-  przewiń do początku obecnego dnia:
+  scroll to beginning of current day:
     /window scroll -d
-  powiększ okno 2 #2:
+  zoom on window #2:
     /window zoom -window 2
-  włączenie trybu niesformatowanego na 2 sekundy:
+  split window horizontally using 30%% of space for the window on top:
+    /window splith 30
+  remove the split:
+    /window merge
+  enable bare display for 2 seconds:
     /window bare 2
 ----
diff --git a/po/cs.po b/po/cs.po
index 3f2f59d60..e7d5332fb 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:42+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2541,7 +2541,7 @@ msgstr ""
 "scroll_previous_highlight|scroll_next_highlight || swap [up|down|left|right] "
 "|| zoom"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2553,8 +2553,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2596,6 +2596,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/de.po b/po/de.po
index 1add4688c..536055d82 100644
--- a/po/de.po
+++ b/po/de.po
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-08-17 08:41+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <>\n"
@@ -2998,6 +2998,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <number>] || swap [-window "
 "<number>] [up|down|left|right] || zoom [-window <number>] || bare [<delay>]"
 
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -3009,8 +3010,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -3052,6 +3053,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/es.po b/po/es.po
index 76b59d08f..461645945 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:42+0200\n"
 "Last-Translator: Elián Hanisch <lambdae2@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2644,7 +2644,7 @@ msgstr ""
 "scroll_unread [-window <número>] || swap [-window <número>] [up|down|left|"
 "right] || zoom[-window <número>]"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2656,8 +2656,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2699,6 +2699,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/fr.po b/po/fr.po
index 5a9e09097..9be39a128 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: 2016-08-16 21:17+0200\n"
-"PO-Revision-Date: 2016-08-16 21:20+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
+"PO-Revision-Date: 2016-08-27 12:07+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -2927,6 +2927,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <numéro>] || swap [-window "
 "<numéro>] [up|down|left|right] || zoom [-window <numéro>] || bare [<délai>]"
 
+#, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2938,8 +2939,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2981,6 +2982,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
@@ -2994,8 +2999,10 @@ msgstr ""
 "         left : sauter à la fenêtre à gauche\n"
 "        right : sauter à la fenêtre à droite\n"
 "       numéro : numéro de fenêtre (voir /window list)\n"
-"       splith : éclater la fenêtre en deux horizontalement\n"
-"       splitv : éclater la fenêtre en deux verticalement\n"
+"       splith : éclater la fenêtre en deux horizontalement (pour défaire : /"
+"window merge)\n"
+"       splitv : éclater la fenêtre en deux verticalement (pour défaire : /"
+"window merge)\n"
 "       resize : redimensionner une fenêtre, la nouvelle taille est <pct> "
 "pourcentage de la fenêtre parent\n"
 "      balance : équilibrer la taille de toutes les fenêtres\n"
@@ -3039,6 +3046,11 @@ msgstr ""
 "    /window scroll -d\n"
 "  zoom sur la fenêtre numéro 2 :\n"
 "    /window zoom -window 2\n"
+"  éclater la fenêtre horizontalement en utilisant 30%% de l'espace pour la "
+"fenêtre du haut :\n"
+"    /window splith 30\n"
+"  supprimer l'éclatement :\n"
+"    /window merge\n"
 "  activer le mode d'affichage dépouillé pendant 2 secondes :\n"
 "    /window bare 2"
 
diff --git a/po/hu.po b/po/hu.po
index f9c3b123e..a58c5891e 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2193,7 +2193,7 @@ msgstr ""
 "[list | -1 | +1 | b# | up | down | left | right | splith [pct] | splitv "
 "[pct] | resize pct | merge [all]]"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2205,8 +2205,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2248,6 +2248,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/it.po b/po/it.po
index c232de7b4..52a4a3e01 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2731,7 +2731,7 @@ msgstr ""
 "scroll_unread [-window <numero>] || swap [-window <numero>] [up|down|left|"
 "right] || zoom[-window <numero>]"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2743,8 +2743,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2786,6 +2786,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/ja.po b/po/ja.po
index 5c0967361..ac3ef7730 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-08-21 09:00+0900\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -2844,6 +2844,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <number>] || swap [-window "
 "<number>] [up|down|left|right] || zoom [-window <number>] || bare [<delay>]"
 
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2855,8 +2856,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2898,6 +2899,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/pl.po b/po/pl.po
index 3eb87efca..26944500a 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys1@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2898,6 +2898,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <numer>] || swap [-window "
 "<numer>] [up|down|left|right] || zoom[-window <numer>] || bare [<opóźnienie>]"
 
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2909,8 +2910,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2952,6 +2953,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/pt.po b/po/pt.po
index 79f9ac23d..4be6ea2ec 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -2894,6 +2894,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <número>] || swap [-window "
 "<número>] [up|down|left|right] || zoom [-window <número>] || bare [<atraso>]"
 
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2905,8 +2906,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2948,6 +2949,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/pt_BR.po b/po/pt_BR.po
index 65aa16289..b4c981b8c 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Eduardo Elias <camponez@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2694,7 +2694,7 @@ msgstr ""
 "scroll_next_highlight|scroll_unread [-window <número>] || swap [-window "
 "<number>] [up|down|left|right] || zoom[-window <número>]"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2706,8 +2706,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2749,6 +2749,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/ru.po b/po/ru.po
index 17c3839d2..4b68575ac 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2216,7 +2216,7 @@ msgstr ""
 "[list | -1 | +1 | b# | up | down | left | right | splith [pct] | splitv "
 "[pct] | resize pct | merge [all]]"
 
-#, fuzzy
+#, fuzzy, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2228,8 +2228,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2271,6 +2271,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/tr.po b/po/tr.po
index 0fbb97ab9..fb889d989 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+0200\n"
 "PO-Revision-Date: 2016-05-18 07:43+0200\n"
 "Last-Translator: Hasan Kiran <sunder67@hotmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2001,6 +2001,7 @@ msgid ""
 "<number>] [up|down|left|right] || zoom [-window <number>] || bare [<delay>]"
 msgstr ""
 
+#, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2012,8 +2013,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2055,6 +2056,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/po/weechat.pot b/po/weechat.pot
index d23cfd8da..d0234103d 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: 2016-08-16 21:17+0200\n"
+"POT-Creation-Date: 2016-08-27 11:58+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"
@@ -1998,6 +1998,7 @@ msgid ""
 "<number>] [up|down|left|right] || zoom [-window <number>] || bare [<delay>]"
 msgstr ""
 
+#, c-format
 msgid ""
 "         list: list opened windows (without argument, this list is "
 "displayed)\n"
@@ -2009,8 +2010,8 @@ msgid ""
 "         left: switch to window on the left\n"
 "        right: switch to window on the right\n"
 "       number: window number (see /window list)\n"
-"       splith: split current window horizontally\n"
-"       splitv: split current window vertically\n"
+"       splith: split current window horizontally (to undo: /window merge)\n"
+"       splitv: split current window vertically (to undo: /window merge)\n"
 "       resize: resize window size, new size is <pct> percentage of parent "
 "window\n"
 "      balance: balance the sizes of all windows\n"
@@ -2052,6 +2053,10 @@ msgid ""
 "    /window scroll -d\n"
 "  zoom on window #2:\n"
 "    /window zoom -window 2\n"
+"  split window horizontally using 30%% of space for the window on top:\n"
+"    /window splith 30\n"
+"  remove the split:\n"
+"    /window merge\n"
 "  enable bare display for 2 seconds:\n"
 "    /window bare 2"
 msgstr ""
diff --git a/src/core/wee-command.c b/src/core/wee-command.c
index 504f13298..fa5baf355 100644
--- a/src/core/wee-command.c
+++ b/src/core/wee-command.c
@@ -8007,8 +8007,10 @@ command_init ()
            "         left: switch to window on the left\n"
            "        right: switch to window on the right\n"
            "       number: window number (see /window list)\n"
-           "       splith: split current window horizontally\n"
-           "       splitv: split current window vertically\n"
+           "       splith: split current window horizontally "
+           "(to undo: /window merge)\n"
+           "       splitv: split current window vertically "
+           "(to undo: /window merge)\n"
            "       resize: resize window size, new size is <pct> percentage of "
            "parent window\n"
            "      balance: balance the sizes of all windows\n"
@@ -8051,6 +8053,11 @@ command_init ()
            "    /window scroll -d\n"
            "  zoom on window #2:\n"
            "    /window zoom -window 2\n"
+           "  split window horizontally using 30%% of space for the window on "
+           "top:\n"
+           "    /window splith 30\n"
+           "  remove the split:\n"
+           "    /window merge\n"
            "  enable bare display for 2 seconds:\n"
            "    /window bare 2"),
         "list"