There are several ways to navigate through the NaviDoc and your document using the Scenes panel.
Mouse
You can use the mouse to scroll the NaviDoc up and down. Clicking on a row in the Scenes panel will take you to that place in the document. If enabled, the flash pointer will point to that element in the document. The Sync button is on by default, so the NaviDoc will scroll as you navigate.
Keyboard
You can move through the NaviDoc using the keyboard.
Top of NaviDoc = CTRL+HOME
Bottom of NaviDoc = CTRL+END
Scroll up one screen =CTRL+PAGEUP
Scroll down one screen = CTRL+PAGEDOWN
Previous Row = CTRL+UP ARROW*
Next Row =CTRL+DOWN ARROW*
*Since these key commands actually select the previous/next row, the document will be moved to that element as well.
Menus
You can also move through the NaviDoc using the menu items under the NaviDoc menu.