Level "S" refers to the single letter headings that divide the index entries alphabetically. To enable these headings, select the Alphabetical delimiter check box in the Format area.
Inserts chapter information, such as the chapter heading and number. Select the information that you want to display in the Chapter entry box.
Select the chapter information that you want to include in the index entry.
Evaluate up to level
Enter the maximum hierarchy level down to which objects are shown in the generated index.
Character Style for main entries
Specify the formatting style for the main entries in the alphabetical index. To convert an index entry into a main entry, click in front of the index field in the document and then choose Edit - Index Entry.
Uses the initial letters of the alphabetically arranged index entries as section headings.
Key separated by commas
Arranges the index entries on the same line, separated by commas.