This app enables: - Automatic heading numbering from Heading 1 to Heading 4 - Heading 5 for figure numbering - Heading 6 for table numbering To add a Table of Contents, you can use the native TOC function in Google Docs™. You can select which heading level to display at each TOC. For example, the TOC will have Headings 1 to 4, while the List of Figures will have Heading 5 only, and the List of Tables will have Heading 6 only.