Generating an Index
Click in your document where you want to insert the index.
From the Insert menu, choose Indexes and Tables > Indexes and Tables.
On the Index/Table tab, select "Alphabetical Index" in the Type box.
Set the formatting options for the index, either on the current tab, or on any of the other tabs of this dialog. For example, if you want to use single letter headings in your index, click the Entries tab, and then select Alphabetical delimiter. To change the formatting of levels in the index, click the Styles tab.
Click OK.
To update the index, right-click in the index, and select Update Index/Table.