If you have a single-page site or very long pages on your site having lots of sections, then you might probably need to use the Dot Navigation to make navigation through the page easier. Divi provides such a posibility but its side navigation lacks some of the important features. For example, someone might want to hide it on mobile devices or control dots number. Or apply custom styling to it. DotNav plugin enhances the Dot Navigation of Divi Theme. It adds lots of new options to the Theme Customizer which let you do all the customizations of Dot Navigation with live preview.