diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.cpp b/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.cpp
new file mode 100644
index 000000000..d3657d13b
--- /dev/null
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.cpp
@@ -0,0 +1,56 @@
+// Object Viewer Qt - BNP Manager Plugin - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2011  Roland Winklmeier <roland.m.winklmeier@googlemail.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+// NeL includes
+#include <nel/misc/debug.h>
+
+// project includes
+#include "bnp_proxy_model.h"
+
+namespace BNPManager 
+{
+
+bool BNPSortProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
+{
+	if ( sourceModel()->hasChildren(left) )
+	{
+		if ( !sourceModel()->hasChildren(right) )
+		{
+			return true;
+		}
+		else
+		{
+			QString leftString = sourceModel()->data( left ).toString();
+			QString rightString = sourceModel()->data( right ).toString();
+			return QString::localeAwareCompare(leftString, rightString) < 0;
+		}
+	}
+	else
+	{
+		if ( sourceModel()->hasChildren(right) )
+			return false;
+		else
+		{
+			QString leftString = sourceModel()->data( left ).toString();
+			QString rightString = sourceModel()->data( right ).toString();
+			return QString::localeAwareCompare(leftString, rightString) < 0;
+		}
+	}
+}
+
+} /* namespace Plugin */
+
+/* end of file */
diff --git a/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.h b/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.h
new file mode 100644
index 000000000..ed2da5966
--- /dev/null
+++ b/code/nel/tools/3d/object_viewer_qt/src/plugins/bnp_manager/bnp_proxy_model.h
@@ -0,0 +1,44 @@
+// Object Viewer Qt - BNP Manager Plugin - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2011  Roland Winklmeier <roland.m.winklmeier@googlemail.com>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>
+
+#ifndef BNP_PROXY_MODEL_H
+#define BNP_PROXY_MODEL_H
+
+// Qt includes
+#include <QSortFilterProxyModel>
+
+namespace BNPManager 
+{
+
+	class BNPSortProxyModel : public QSortFilterProxyModel
+	{
+
+	public:
+		BNPSortProxyModel(QObject *parent = 0): QSortFilterProxyModel(parent)
+		{
+		}
+		~BNPSortProxyModel() 
+		{
+		}
+
+	protected:
+		virtual bool 	lessThan ( const QModelIndex & left, const QModelIndex & right ) const;
+
+	};/* class BNPSortProxyModel */
+
+} // BNPManager
+
+#endif // BNP_PROXY_MODEL_H