private void addWorldWindOptions() {
TreeItem ww = new TreeItem(tree, SWT.NONE);
ww.setText(Messages.Wizard_Ww_Example_Title);
WWControl wwControlFactory = new WWControl();
TreeItem wwTreeItem = new TreeItem(ww, SWT.NONE);
wwTreeItem.setText(Messages.Wizard_Ww_Example_Demis_Title);
WMTWizardTreeItemData dataWW = new WMTWizardTreeItemData(null, wwControlFactory);
wwTreeItem.setData(dataWW);