private void showNavigationAid() {
		String showAidString = Preferences.getProperty(HelpManager.SHOW_AID_KEY);
		if (showAidString == null) {
			return;
		}

		boolean showAid = Boolean.parseBoolean(showAidString);
		if (!showAid) {
			return;
		}

		calloutReferenceLater();
	}
An extension of the {@link GHelpBroker} that allows {@code Docking} classes to be installed.
<p>
Additions include a search feature a navigation aid.
Ghidra/Framework/Docking/src/main/java/docking/help/DockingHelpBroker.java