the steps to automatically generate a table of contents using outline levels are as follows:
Step one: Open the word2013 document, edit the contents of the body and need to be the contents of the TOC, then select the text as the title, right-click, select paragraph.
Step two: In the pop-up Paragraph dialog box, select Set the outline level item to Level 1, and then click the OK button.
Step three: Then, select the text you want as a level two directory, and set the outline level to 2 in the Paragraph dialog box.
Step four: Make the text content of the document level 1 and Level 2 in turn, and you can set it in the Paragraph dialog box if you need a level 3 or more levels directory.
Step five: After all the settings are complete, click where you want to insert the table of contents, and then click Custom Catalog in the directory on the References panel in the menu.
Step six: In the custom dialog box, click the Options button, just tick the outline level check box, and click OK to close the window.
Step Seven: Here, use the outline level to build the catalog complete.