Something

protected void createFieldEditors() {
	final Composite parent = getFieldEditorParent();
	final ManagedForm form = new ManagedForm(parent);
	form.getForm().setText("Preferences");
	GridDataFactory.fillDefaults().grab(true, true).applyTo(form.getForm());

	final Composite body = form.getForm().getBody();
	GridLayoutFactory.swtDefaults().applyTo(body);
	final Section section = form.getToolkit().createSection(body, Section.TITLE_BAR);
	GridDataFactory.fillDefaults().grab(true, false).applyTo(section);
}