In the new CDT 4.0 project model, you should be able to override the dialog that gets displayed when clicking the manage button on any of the C/C++ project property pages, Class which implements IConfigManager interface. CDT 4.0 Copyright (c) 2007 Intel Corporation and others. All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html Contributors: Intel Corporation - initial API and implementation