Bug 296565 Make group creation an advanced option in the folder
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewGroupMainPage.java
protected void initializePage() {
        Iterator it = currentSelection.iterator();
        if (it.hasNext()) {
            Object next = it.next();
            IResource selectedResource = null;
            if (next instanceof IResource) {
                selectedResource = (IResource) next;
            } else if (next instanceof IAdaptable) {
                selectedResource = (IResource) ((IAdaptable) next)
                        .getAdapter(IResource.class);
            }
            if (selectedResource != null) {
                if (selectedResource.getType() == IResource.FILE) {
					selectedResource = selectedResource.getParent();
				}
                if (selectedResource.isAccessible()) {
					resourceGroup.setContainerFullPath(selectedResource.getFullPath());
				}
            }
        }
        setPageComplete(false);
    }
    /*
     * @see DialogPage.setVisible(boolean)
     */
    public void setVisible(boolean visible) {
        super.setVisible(visible);
        if (visible) {
			resourceGroup.setFocus();
		}