. To show the Contents pane, in the Help toolbar choose 
.The Help Viewer provides an integrated table of Contents, an Index, and full-text Search so you can find information easily. Book icons open to reveal pages (Help topics) and sub-books.
To hide the Contents pane, at the top of the Contents pane choose . To show the Contents pane, in the Help toolbar choose .
In a Help topic, you can click underlined words to see other information related to the topic:
A term that is defined in the Glossary is shown within the text as underlined text. When you click the word or phrase, the definition is displayed in a popup box. Click anywhere in the window to make the popup disappear.
To display other topics containing related information, click Related Topics (if it appears at the end of a topic) and then click the title of the topic you want. If there is only one related topic, Help takes you straight to that topic instead of displaying a topic title list.