UserGuide.lyx: describe the last missing new feature of LyX 2.1

lib/doc/UserGuide.lyx

@@ -43201,6 +43201,8 @@ View\SpecialChar \menuseparator
 Hidden
 \family default
 .
+ Not to close documents can be useful if you open files parallel in several
+ instances of LyX and only want to close the view in once instance.
 \end_layout
 
 \begin_layout Subsection
@@ -44550,14 +44552,26 @@ Default
 \begin_inset space ~
 \end_inset
 
-Decimal
+decimal
 \begin_inset space ~
 \end_inset
 
-Point Define the default decimal point for use in tables (decimal point
+separator Defines the default decimal point for use in tables (decimal point
  alignment).
 \end_layout
 
+\begin_layout Description
+Default
+\begin_inset space ~
+\end_inset
+
+length
+\begin_inset space ~
+\end_inset
+
+unit Defines the unit that is used as default for lengths in LyX's dialogs.
+\end_layout
+
 \begin_layout Description
 Set
 \begin_inset space ~

lib/doc/de/UserGuide.lyx

@@ -43338,6 +43338,9 @@ Ansicht\SpecialChar \menuseparator
 Versteckt
 \family default
  aufrufbar.
+ Dokumente nicht zu schließen kann nützlich sein, wenn man Dateien parallel
+ in mehreren Instanzen von LyX öffnet und nur die Ansicht in einer Instanz
+ schließen möchte.
 \end_layout
 
 \begin_layout Subsection
@@ -44594,12 +44597,17 @@ l das Paket an- und abschaltet.
 \end_layout
 
 \begin_layout Description
-Standard-Dezimalzeichen Legen Sie hier den Standard-Dezimaltrenner fest,
+Standard-Dezimaltrenner Legen Sie hier den Standard-Dezimaltrenner fest,
  welcher für die Ausrichtung am Dezimalzeichen in Tabellen verwendet wird.
  Voreingestellt ist der Punkt, im Deutschen wird in der Regel aber ein Komma
  verwendet.
 \end_layout
 
+\begin_layout Description
+Standard-Längeneinheit Legt die Einheit fest, die als Voreinstellung für
+ Längen in LyXs Dialogen verwendet wird.
+\end_layout
+
 \begin_layout Description
 Sprachen
 \begin_inset space ~

lib/doc/es/UserGuide.lyx

@@ -43342,6 +43342,8 @@ View\SpecialChar \menuseparator
 Hidden
 \family default
 .
+ Not to close documents can be useful if you open files parallel in several
+ instances of LyX and only want to close the view in once instance.
 \end_layout
 
 \begin_layout Subsection
@@ -44720,6 +44722,20 @@ predeterminado Define el símbolo por omisión para separar decimales en cuadros
  (alineación del separador decimal).
 \end_layout
 
+\begin_layout Description
+
+\lang english
+Default
+\begin_inset space ~
+\end_inset
+
+length
+\begin_inset space ~
+\end_inset
+
+unit Defines the unit that is used as default for lengths in LyX's dialogs.
+\end_layout
+
 \begin_layout Description
 Establecer
 \begin_inset space ~

lib/doc/fr/UserGuide.lyx

@@ -44669,6 +44669,8 @@ View\SpecialChar \menuseparator
 Hidden
 \family default
 .
+ Not to close documents can be useful if you open files parallel in several
+ instances of LyX and only want to close the view in once instance.
 \end_layout
 
 \begin_layout Subsection
@@ -46158,6 +46160,20 @@ implicite définit le caractère à utiliser pour les chiffres en tableau (align
 nt sur les décimales).
 \end_layout
 
+\begin_layout Description
+
+\lang english
+Default
+\begin_inset space ~
+\end_inset
+
+length
+\begin_inset space ~
+\end_inset
+
+unit Defines the unit that is used as default for lengths in LyX's dialogs.
+\end_layout
+
 \begin_layout Description
 Utiliser
 \begin_inset space ~

lib/doc/ja/UserGuide.lyx

@@ -36308,6 +36308,25 @@ status open
 
 \end_layout
 
+\begin_layout Standard
+
+\lang english
+With the setting 
+\family sans
+Closing last view
+\family default
+ you one can decide if a document is closed or hidden when its tab or view
+ is closed.
+ Hidden documents are accessible via the menu 
+\family sans
+View\SpecialChar \menuseparator
+Hidden
+\family default
+.
+ Not to close documents can be useful if you open files parallel in several
+ instances of LyX and only want to close the view in once instance.
+\end_layout
+
 \begin_layout Subsection
 画面フォント
 \begin_inset Index idx
@@ -37536,6 +37555,20 @@ selectlanguage{$$lang}
 既定小数点 表で使用する小数点を定義します(小数点揃え用)。
 \end_layout
 
+\begin_layout Description
+
+\lang english
+Default
+\begin_inset space ~
+\end_inset
+
+length
+\begin_inset space ~
+\end_inset
+
+unit Defines the unit that is used as default for lengths in LyX's dialogs.
+\end_layout
+
 \begin_layout Description
 言語を大域的に設定 このオプションを有効にすると、この文書で使われている言語は、文書クラスオプションとして追加され、すべてのLaTeXパッケージで使用されるよう
 になります。有効にしなければ、言語は