I am writing a thesis, but I don't know how to set the table of contents and abstracts as Roman numerals when setting the page numbers, while the main body is Arabic numerals. Please understand.

1. Open the table and click the formula button, as shown.

2. Click the insert function, as shown.

3. Select Math and Trigonometric Function in the pop-up window, as shown in the figure.

4. Select the function converted to text Roman numerals, as shown.

5. Enter the value in the pop-up dialog box and click OK, as shown in the figure.

6. Return the conversion result, as shown in the figure.