Using accessibility shortcut keys in the Help Viewer
   

Shortcut keys for the Favorites tab

To display the Favorites tab.
Alt+I
To add the currently displayed topic to the Favorites list.
Alt+A
To select a topic in the Favorites list.
Alt+P, and then Up Arrow and Down Arrow
To display the selected topic.
Alt+D
To remove the selected topic from the list.
Alt+R



http://www.hp.com