you want more space between the items on level 1 and level 2 of your table of contents, or you want all your level 1 items to be bold), click on the Modify button, select the TOC level you want to change, then click the Modify button to do so. If you want to change the style of your table of contents (e.g.On the References Ribbon, in the Table of Contents Group, click on the arrow next to the Table of Contents icon, and select Custom Table of Contents.Place your cursor where you want your table of contents to be.If you have used Heading styles in your document, creating an automatic table of contents is easy.

All subheadings should use Heading 3, and so on. All major headings within your chapters should be use the Heading 2 style. If you want an automatic table of contents you need apply the Heading 1 style to all of your chapter titles and front matter headings (e.g. Microsoft Word can scan your document and find everything in the Heading 1 style and put that on the first level of your table of contents, put any Heading 2’s on the second level of your table of contents, and so on. An automatic Table of Contents uses Styles to keep track of page numbers and section titles for you automatically.

How to add headings in word online