Understand index markers in Adobe FrameMaker.
In a typical index, entries are generated from markers and are sorted alphabetically. Entries with the same text are merged into a single entry with several page references. You can add special building blocks to marker text to control the form of the index entry—for example, to specify that it’s a sub-entry or a cross-reference to another entry.
A. Main entry B. Subentries C. Cross-reference to another entry D. Page range
You can also create specialized indexes by using predefined marker types such as Subject or Author, or by using other marker types that you create.