public void remove() {
		Configuration[] configs = configurations.getSelected();
		if (configs.length == 0) {
			JOptionPane.showMessageDialog(configurations,
					NO_CONFIGURATION_ERROR, NO_CONFIGURATION_ERROR_TITLE,
					JOptionPane.ERROR_MESSAGE);
			return;
		}
		for (int i = 0; i < configs.length; i++) {
			configurations.remove(configs[i]);

		}
		configurations.validate();
		configurations.repaint();
	}