Word How do you update the navigation pane in Word to show headings?

[Bungee Yau]

Hi,

How do you update the navigation pane in Word so that it will display the headings and sub-headings in the document? When you click on the heading in the navigation panel, it will take you directly to that section. I was able to update the table of contents and once I press Ctrl and click the line, it would take me to that section. However, I couldn't get the navigational panel to work the same way.

Thanks in advance!!
Bungee