If you want to create a keyword based on the title of a topic, you can drag the topic into the Index Designer. After you add the topic as a keyword, you can rename it and link other topics to it.
Click the Index tab.
From the drop-down in the upper-left corner, select Index.
Click the Topics tab.
From the Topics List, select the topic that you want to add to your index.
White icons indicate that the topic has not been added to the index.
Blue icons indicate that the topic has been added to the index.
Drag and drop the topic into the Keyword pane in the upper-part of the Index Designer.
Note: Depending on
the default keyword you set up for the project, the Index Designer displays
a key icon next to index file keywords and a key/page icon
next to topic keywords. For more information, see Selecting
keyword types.