diff --git a/include/nana/filesystem/filesystem.hpp b/include/nana/filesystem/filesystem.hpp
index b00760d2..284faea1 100644
--- a/include/nana/filesystem/filesystem.hpp
+++ b/include/nana/filesystem/filesystem.hpp
@@ -1,12 +1,13 @@
 /*
  *	A filesystem Implementation
- *	Copyright(C) 2003 Jinhao(cnjinhao@hotmail.com)
+ *	Nana C++ Library(http://www.nanapro.org)
+ *	Copyright(C) 2003-2015 Jinhao(cnjinhao@hotmail.com)
  *
  *	Distributed under the Boost Software License, Version 1.0.
  *	(See accompanying file LICENSE_1_0.txt or copy at
  *	http://www.boost.org/LICENSE_1_0.txt)
  *
- *	@file: stdex/filesystem/filesystem.hpp
+ *	@file: nana/filesystem/filesystem.hpp
  *	@description:
  *		file_iterator is a toolkit for applying each file and directory in a
  *	    specified path.
diff --git a/include/nana/gui/widgets/group.hpp b/include/nana/gui/widgets/group.hpp
index 26a0e408..cff1f21e 100644
--- a/include/nana/gui/widgets/group.hpp
+++ b/include/nana/gui/widgets/group.hpp
@@ -9,7 +9,7 @@
  *
  *	@file: nana/gui/widgets/group.hpp
  *
- *	@contributors: Stefan Pfeifer (st-321), Jinhao, Ariel Vina-Rodriguez (qPCR4vir)
+ *	@Author: Stefan Pfeifer(st-321), Ariel Vina-Rodriguez (qPCR4vir)
  *
  *	@brief group is a widget used to visually group and layout other widgets.
  */
@@ -21,27 +21,34 @@
 #include <nana/gui/widgets/panel.hpp>
 
 namespace nana{
-    class group
-	    : public panel<true>
-    {
-	    place        plc_outer{*this};
-        panel<false> content  {*this};
-        place        plc_inner{content};
-
+	class group
+		: public panel<true>
+	{
 		struct implement;
-    public:
-        group( window    parent,         ///< 
-               std::wstring    titel_ ={STR("")},     ///< 
-               bool      format =false,  ///< Use a formated label?
-               unsigned  gap =2,         ///< betwen the content  and the external limit
-               rectangle r ={}           ///<
-              );
+	public:
+		group(	window    parent,         ///< 
+				std::wstring    titel_ ={STR("")},     ///< 
+				bool      format =false,  ///< Use a formated label?
+				unsigned  gap =2,         ///< betwen the content  and the external limit
+				rectangle r ={}           ///<
+			);
 
 		~group();
 
-        place& plc  (){ return plc_inner; }
-        window inner(){ return content; }
+		place& get_place();
+		
+		template<typename Widget, typename ...Args>
+		Widget* create_child(const char* field, Args && ... args)
+		{
+			auto wdg = new Widget(inner(), std::forward<Args>(args)...);
+			_m_add_child(field, wdg);
+			return wdg;
+		}
+
+		window inner();
 	private:
+		void _m_add_child(const char* field, widget*);
+
 		::nana::string _m_caption() const override;
 		void _m_caption(::nana::string&&) override;
 	private:
diff --git a/source/gui/widgets/group.cpp b/source/gui/widgets/group.cpp
index e18f0bbd..5b61a9e3 100644
--- a/source/gui/widgets/group.cpp
+++ b/source/gui/widgets/group.cpp
@@ -23,7 +23,17 @@ namespace nana{
 
 	struct group::implement
 	{
-		label caption;
+		label			caption;
+		panel<false>	content;
+		place place_outter;
+		place place_content;
+
+		implement(group* host):
+			caption(*host),
+			content(*host),
+			place_outter(*host),
+			place_content(content)
+		{}
 	};
 
 	group::group(	window    parent,              ///<
@@ -33,28 +43,30 @@ namespace nana{
 					rectangle r /*={} */          ///<
               )
 			  :	panel (parent, r),
-				impl_(new implement)
+				impl_(new implement(this))
 	{
-		impl_->caption.create(*this);
 		impl_->caption.format(format);
 		::nana::size sz = impl_->caption.measure(1000);
 		std::stringstream ft;
 		
-		ft << "vert margin=[0," << gap << "," << gap << "," << gap << "]"
+		ft << "vert margin=[0," << gap << ","<<gap<<","<<gap<<"]"
 		   << " <weight=" << sz.height << " <weight=5> <titel weight=" << sz.width+1 << "> >"
 		   << " <content>";
-		plc_outer.div(ft.str().c_str());
+
+		auto & outter = impl_->place_outter;
+
+		outter.div(ft.str().c_str());
 		
-		plc_outer["titel"  ] << impl_->caption;
-		plc_outer["content"] << content;
-		plc_outer.collocate();
+		outter["titel"] << impl_->caption;
+		outter["content"] << impl_->content;
+		outter.collocate();
 		
 		color pbg =  API::bgcolor( parent);
 		impl_->caption.bgcolor(pbg.blend(colors::black, 0.975) );
 		color bg=pbg.blend(colors::black, 0.950 );
 		
 		bgcolor(pbg);
-		content.bgcolor(bg);
+		impl_->content.bgcolor(bg);
 		
 		drawing dw(*this);
 		
@@ -73,6 +85,21 @@ namespace nana{
 	{
 	}
 
+	place& group::get_place()
+	{
+		return impl_->place_content;
+	}
+
+	window group::inner()
+	{
+		return impl_->content;
+	}
+
+	void group::_m_add_child(const char* field, widget* wdg)
+	{
+		impl_->place_content[field] << wdg->handle();
+	}
+
 	::nana::string group::_m_caption() const
 	{
 		return impl_->caption.caption();