Samsung SCH-I910ZKAVZW - Manual (Page 47)

Customization and Navigation 44
Scrolling
To view more widgets or additional menus:
Swipe up and down along the Widget bar.
Using the Optical Mouse
Using 4-Way Navigation
The Optical Mouse can be used to scroll through menu items. A
highlighted menu item can be selected by pressing the Optical Mouse.
1. You can use the finger to scroll left or right through menus,
sub-menus and options when using the phone feature.
Note: You may need to scroll several times to move through the menus.
Using Mouse Navigation
Mouse navigation allows you to control your device Cursor as
you move your thumb or fingers on the Optical Mouse pad.
Scrolling Left/Right Scrolling Up/Down