Indexes - General Category
Use the properties in the General category to specify the scope of indexes generated by an index definition object.
• Scope - specify the scope in which the index should appear, for example the whole document, or a chapter. Type the name of the scoping element or select it from the drop down list.
• Use for chunked HTML outputs (EPUB, HTML Help, and Web) - check this option to confirm that the index should be used in chunked HTML outputs.
You can designate multiple indexes for chunked output. Index terms from all indexes assigned to chunked output will be merged into one. If no index is specified for chunked output, then all indexes are used for chunked output. .
Refer to
Indexing Overview for further information on creating indexes.