diff --git a/include/nana/gui/widgets/group.hpp b/include/nana/gui/widgets/group.hpp
index 2e264289..8507c555 100644
--- a/include/nana/gui/widgets/group.hpp
+++ b/include/nana/gui/widgets/group.hpp
@@ -66,6 +66,10 @@ namespace nana{
 		group& collocate() throw();
 		group& div(const char* div_str) throw();
 		field_reference operator[](const char* field);
+
+		void field_display(const char* field_name, bool display); ///<Displays/Discards an existing field.
+		bool field_display(const char* field_name) const;	///<Determines whether the specified field is displayed.
+		void erase(window handle);				///< Erases a window from field.
 		
 		template<typename Widget, typename ...Args>
 		Widget* create_child(const char* field, Args && ... args)
diff --git a/source/gui/widgets/group.cpp b/source/gui/widgets/group.cpp
index 87d2ebc6..aedb110f 100644
--- a/source/gui/widgets/group.cpp
+++ b/source/gui/widgets/group.cpp
@@ -194,6 +194,21 @@ namespace nana{
 		return impl_->place_content.field(field);
 	}
 
+	void group::field_display(const char* field_name, bool display)
+	{
+		impl_->place_content.field_display(field_name, display);
+	}
+
+	bool group::field_display(const char* field_name) const
+	{
+		return impl_->place_content.field_display(field_name);
+	}
+
+	void group::erase(window handle)
+	{
+		impl_->place_content.erase(handle);
+	}
+
 	void group::_m_add_child(const char* field, widget* wdg)
 	{
 		impl_->place_content[field] << wdg->handle();