The following options are available when you select User-Defined as the index type.
Choose Insert - Table of Contents and Index - Table of Contents, Index or Bibliography - Type tab (when User-Defined is the selected type)
User-defined indexes are available in the \<emph\>Type\</emph\> box when you insert an index entry in your document.
Type and Title
Specify the type and title of the index.
Select the type of index that you want to insert or edit. The options available on this tab depend on the index type that you select. If the cursor is in an index when you choose the Insert - Table of Contents and Index - Table of Contents, Index or Bibliography, you can then edit that index.
Enter a title for the selected index.
Protected against manual changes
Prevents the contents of the index from being changed. Manual changes that you make to an index are lost when the index is refreshed. If you want the cursor to scroll through a protected area, choose LibreOffice - PreferencesTools - Options - LibreOffice Writer - Formatting Aids, and then select the Enable cursor check box in the Protected Areas section.
Create Index or Table of Contents
Select whether to create the index for the document or for the current chapter.
Includes the paragraph styles that you specify in the Assign Styles dialog as index entries. To select the paragraph styles that you want to include in the index, click the Assign Styles (...) button to the right of this box.
Opens the Assign Styles dialog, where you can select the paragraph styles to include in the index. Choose the proper heading level on which the style will be included in the index.
Includes the index entries that you inserted by choosing Insert - Table of Contents and Index - Index Entry in the index.
Includes tables in the index.
Includes graphics in the index.
Includes frames in the index.
Includes OLE objects in the index.
Use level from source chapter
Indents table, graphic, frame, and OLE object index entries according their place in the chapter heading hierarchy.
Defining an index entry