read only table of contents

Hello,

I’m trying to edit a Table of Contents that came with the document I am editing. It tells me it is read-only and will not let me edit it. Any suggestions?

Does the advice from either of these help?

i. Creating a Table of Contents - LibreOffice Help

or from

ii. LibreOffice Writer 6.0 Guide

Editing a table of contents. To edit an existing TOC:

  1. Right-click anywhere in the TOC.

  2. From the context menu, choose Edit Index. The Table of Contents, Index or Bibliography
    dialog (Figure 325 on page 326) opens. You can edit and save the TOC as described in the
    previous section.

Tip If you cannot click in the TOC, it is probably protected. To disable this protection,
choose Tools > Options > LibreOffice Writer > Formatting Aids, and then select
Enable Cursor in the Protected areas section. If you wish to edit the TOC without
enabling the cursor, you can access it from the Navigator …