Adding a new profile to Navigation
Select the 'Navigation' tab on the left menu.
Under this tab, click the 'Navigation category. (It will appear once you click the main Navigation tab)
On the right hand side of the Site Navigation, click the grey 'Manage' button.
Once directed to 'Navigation Profiles' select the blue 'Add Profile' button.
Input your Profile name and click 'Save Nav Profile'.
Your profile will appear under the Navigation Profile bar.