diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_info.h b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_info.h
index 3fed78733..684cbc8ca 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_info.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_info.h
@@ -43,11 +43,19 @@ namespace GUIEditor
 	{
 		std::string name;
 		std::string GUIName;
+		std::string ancestor;
 		std::string description;
 		bool isAbstract;
 		std::string icon;
+		bool resolved;
 
 		std::vector< SPropEntry > props;
+
+		SWidgetInfo()
+		{
+			resolved = false;
+			isAbstract = true;
+		}
 	};
 }
 
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.cpp
index 8f5b64191..dc2b016c7 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.cpp
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.cpp
@@ -47,6 +47,8 @@ namespace GUIEditor
 		while( itr.hasNext() )
 			parseGUIWidget( "widgets/" + itr.next() );
 
+		resolveInheritance();
+
 		widgetInfo = NULL;
 	}
 
@@ -119,6 +121,9 @@ namespace GUIEditor
 					if( key == "guiname" )
 						info.GUIName = value.toStdString();
 					else
+					if( key == "ancestor" )
+						info.ancestor = value.toStdString();
+					else
 					if( key == "description" )
 						info.description = value.toStdString();
 					else
@@ -202,7 +207,66 @@ namespace GUIEditor
 
 			reader.readNext();
 		}
-	}	
+	}
+
+	bool propCompare( const SPropEntry &left, const SPropEntry &right )
+	{
+		return left.propName < right.propName;
+	}
+
+	void CWidgetPropParser::resolveInheritance()
+	{
+		for( std::map< std::string, SWidgetInfo >::iterator itr = widgetInfo->begin(); itr != widgetInfo->end(); ++itr )
+		{
+			resolveInheritanceFor( itr->first );
+			std::sort( itr->second.props.begin(), itr->second.props.end(), propCompare );
+		}
+		
+	}
+
+	void CWidgetPropParser::resolveInheritanceFor( const std::string name )
+	{
+		if( name.empty() )
+			return;
+
+		std::map< std::string, SWidgetInfo >::iterator itr =
+			widgetInfo->find( name );
+		if( itr == widgetInfo->end() )
+			return;
+
+		SWidgetInfo *info = &(itr->second);
+		if( info->resolved )
+			return;
+
+		if( info->ancestor.empty() )
+			return;
+
+		std::vector< SPropEntry > &props = info->props;
+
+		std::map< std::string, SWidgetInfo >::iterator itr2 =
+			widgetInfo->find( info->ancestor );
+		if( itr2 == widgetInfo->end() )
+			return;
+		SWidgetInfo *info2 = &(itr2->second);
+
+		do
+		{
+			for( std::vector< SPropEntry >::iterator propItr = info2->props.begin(); propItr != info2->props.end(); ++propItr )
+				props.push_back( *propItr );
+
+			if( !info2->resolved && !info2->ancestor.empty() )
+			{
+				itr2 = widgetInfo->find( info2->ancestor );
+				if( itr2 != widgetInfo->end() )
+					info2 = &(itr2->second);
+				else
+					info2 = NULL;				
+			}
+		}
+		while( ( info2 != NULL ) && !info2->resolved && !info2->ancestor.empty() );
+
+		info->resolved = true;
+	}
 }
 
 
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.h b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.h
index b3dc403ca..4dcbffacf 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.h
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_properties_parser.h
@@ -41,6 +41,8 @@ namespace GUIEditor
 		void parseGUIWidgetXML( QFile &file );
 		QString parseGUIWidgetHeader( QXmlStreamReader &reader );
 		void parseGUIWidgetProperties( QXmlStreamReader &reader, const QString &widgetName );
+		void resolveInheritance();
+		void resolveInheritanceFor( const std::string name );
 		
 		std::map< std::string, SWidgetInfo > *widgetInfo;
 	};
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/ControlBase.xml b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/ControlBase.xml
index 3f092e135..809ccacfd 100644
--- a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/ControlBase.xml
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/ControlBase.xml
@@ -2,6 +2,7 @@
     <header>
         <name>CtrlBase</name>
         <guiname>cb</guiname>
+        <ancestor>InterfaceElement</ancestor>
         <description></description>
         <abstract>true</abstract>
         <icon></icon>
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/InterfaceGroup.xml b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/InterfaceGroup.xml
new file mode 100644
index 000000000..d11ceb180
--- /dev/null
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widgets/InterfaceGroup.xml
@@ -0,0 +1,22 @@
+<widget>
+    <header>
+        <name>InterfaceGroup</name>
+        <guiname>ig</guiname>
+        <ancestor>CtrlBase</ancestor>
+        <description></description>
+        <abstract>false</abstract>
+        <icon></icon>
+    </header>
+    <properties>
+        <property>
+            <name>on_enter</name>
+            <type>string</type>
+            <default>handler</default>
+        </property>
+        <property>
+            <name>on_enter_params</name>
+            <type>string</type>
+            <default>params</default>
+        </property>
+    </properties>
+</widget>