Add a border around the Contents pane.
Add a frame around Contents pane.
Lines From Root
Display lines connecting books and pages starting at the root.
Display plus and minus squares that open and close books.
Folders Instead Of Books
For table of contents book items, display a folder icon in place of a book icon.
Single-Click To Open Book
Formats book items to open with a single click. When this feature is not selected, books open with a double-click.
Lines Between Items
Add lines between books and pages.
Format the table of contents so it looks raised from the tri-pane.
Format the table of contents so it looks sunken into the tri-pane.