diff --git a/sw/lib/ocaml/widgets.glade b/sw/lib/ocaml/widgets.glade
index 5a25fedba5..0979a899cd 100644
--- a/sw/lib/ocaml/widgets.glade
+++ b/sw/lib/ocaml/widgets.glade
@@ -168,6 +168,63 @@
 	</packing>
       </child>
 
+      <child>
+	<widget class="GtkHBox" id="hbox_scale">
+	  <property name="homogeneous">False</property>
+	  <property name="spacing">0</property>
+
+	  <child>
+	    <widget class="GtkLabel" id="label41">
+	      <property name="visible">True</property>
+	      <property name="label" translatable="yes">Scale</property>
+	      <property name="use_underline">False</property>
+	      <property name="use_markup">False</property>
+	      <property name="justify">GTK_JUSTIFY_LEFT</property>
+	      <property name="wrap">False</property>
+	      <property name="selectable">False</property>
+	      <property name="xalign">0.5</property>
+	      <property name="yalign">0.5</property>
+	      <property name="xpad">0</property>
+	      <property name="ypad">0</property>
+	      <property name="ellipsize">PANGO_ELLIPSIZE_NONE</property>
+	      <property name="width_chars">-1</property>
+	      <property name="single_line_mode">False</property>
+	      <property name="angle">0</property>
+	    </widget>
+	    <packing>
+	      <property name="padding">0</property>
+	      <property name="expand">False</property>
+	      <property name="fill">False</property>
+	    </packing>
+	  </child>
+
+	  <child>
+	    <widget class="GtkEntry" id="entry_scale">
+	      <property name="visible">True</property>
+	      <property name="tooltip" translatable="yes">&quot;a+b&quot; to display value x as a.x+b</property>
+	      <property name="can_focus">True</property>
+	      <property name="editable">True</property>
+	      <property name="visibility">True</property>
+	      <property name="max_length">0</property>
+	      <property name="text" translatable="yes">1+0</property>
+	      <property name="has_frame">True</property>
+	      <property name="invisible_char">●</property>
+	      <property name="activates_default">False</property>
+	    </widget>
+	    <packing>
+	      <property name="padding">0</property>
+	      <property name="expand">True</property>
+	      <property name="fill">True</property>
+	    </packing>
+	  </child>
+	</widget>
+	<packing>
+	  <property name="padding">0</property>
+	  <property name="expand">True</property>
+	  <property name="fill">True</property>
+	</packing>
+      </child>
+
       <child>
 	<widget class="GtkEventBox" id="box_item_editor">
 	  <property name="visible">True</property>