Navigation section - edit navigation menu

- Read and follow Create dropdown and mega menu
- From WordPress Admin, click on WT THEME_NAME Theme

- Here, we will use Base Outline so we can show these global header and footer to all pages and also inherit them on other outlines.
Click on Layout under Base Outline
- Scroll down to Navigation section, click config icon next to the Menu particle

- From Menu options, select the main menu you created.