1. Opens a wps document with multilevel titles.

2. Select the text to be set as the first-level title, and click "Title 1".

3. Right-click the title 1 and select "Modify Style".

4. Set the font and font size of the first-level title as needed, and click OK.

5. As shown in the figure below, the first-level title setting is completed.

6. Hold down the Ctrl key to select all the texts, click on the texts, and set the font and font size of the texts as required.

7. Set other titles according to the above method, and the final effect is shown in the figure below.