Changing the navigation bar itself
Just any other element on the canvas, navigation bars can have editable properties. If the navigation bar is editable, the style editor is triggered by clicking the menu bar when the entire bar has the red outline on the canvas (clicking on elements within the navigation bar can result in the style editor being triggered on the nested element rather than the bar itself).
Modifying the menu links / buttons
To add new links to the navigation bar, click on the link after which you want to insert the new link. Next, click the “clone” button in the style editor. This will result in an identical link being insert after the selected one. Finally, click the new link to modify the text and link target.
The same process can be applied to buttons inside the navigation bar.
Logos
Navigation bars can have either text logos, or images logos. See the video below on how to use an image logo inside a navigation bar.