Customizing the HTML Help window gives you control over the size and position of the viewer and the buttons appearing on its toolbar. Click the Add/Modify Window definitions and type a name for the window (any name will do), and then use the Buttons and Position tabs to define the window appearance.
Large help systems can benefit from the addition of a fourth tab-Favorites-which allows users to maintain a personalized list of favorite topics, much like they do in a web browser. Click the Navigation pane tab and select the Favorites tab check box.
You should also select the Advanced check box in order to enable the advanced search interface. This provides expanded information about search results and also provides an interface for advanced users to construct a Boolean search.