Inserting a table of contents in two columns steps are as follows:
Step one: Open the document you want to edit. Select the blank content on the first page, this is the most important, determines whether the problem can be completed. Then page layout, columns, and finally to more columns. As shown in the figure.
Second step: In the Pop-up interface, choose two columns, separator lines, and most importantly, apply to: Selected text. As shown in the figure.
Step three: After completing the previous steps, under the Reference menu, select Directory. This process should note that the cursor stays on the home page. As shown in the figure.
Step four: After clicking "Catalog", select a directory, such as "Auto Catalog 2". As shown in the figure.
Step five: This is done! The final effect is shown in the figure. The text content is a column, and the table of contents is two columns.