The Index command displays an alphabetic list of reserved words. Reserved words are words whose use is predefined, such as keywords, function names, and directives. To use the index 1. Notice the alphabet at the top of the screen. Type a letter and press ENTER to see a list of entries starting with that letter. 2. Use the scroll bars and arrow keys to move through the list. 3. Press F1 or ENTER to get help on the topic above the cursor.