Updating a table of contents in word
If you choose instead to create a manual table of contents, Word will add dummy text to the table instead of using your headings, you'll have to manually type in each entry, and Word won't be able to update the table of contents for you--not very much fun. Once you've chosen one of the automatic tables of contents or the custom option, Word will create the table of contents for you.
On the other hand, when I insert a table of contents, Word automatically searches for those headings and displays a table of contents based on the text that I marked with each style.
Later I can also use these headings to update my table of contents. My table of contents looks like this: A Table of Contents also creates links for each section, allowing you to navigate to different parts of your document.
Now I have my document well-prepared with the titles as Heading 1 and the subtitles as Heading 2. Just hold the Ctrl key on your keyboard and click to go to any section.
You can also take advantage of the "Heading 4-9" styles for creating additional heading levels.
I want my table of contents to be more presentable, so I am going to add a numbering scheme to the titles and subtitles of my document. Go round for the other main titles, but now when the number appears next to the title, click the lightning box and choose "Continue numbering". As for the subtitles, highlight one, press the TAB button on your keyboard, and then choose the same Multilevel List option.