You can switch links in the Scene View on and off. You can also toggle the display of each of the link categories. Autodesk Navisworks remembers the selected visibility setting between sessions.
When links are switched on, you can reduce the screen clutter by restricting a number of links can be shown in the Scene View, hiding colliding icons, and using culling. Finally, as some standard link categories can have comments associated with them, you can choose to only draw links with attached comments.