Pull Right Nav Items
Menu items of your choosing can be pulled to the right side of the navigation, separating them from the rest. The Startup demo uses this for its button link:

This is achieved through the menu location titled “Top Navigation Menu Pull Right”, found in Appearance > Menus > Manage Locations. You can assign any menu you’ve created that houses your links to it. The Startup demo uses a menu with only one link, set to display in a button style.

Note that currently this menu location only appears when using one of the compatible header layouts, chosen in the Salient options panel > header navigation tab.
