Telenav for Sprint Supported Devices: v5.1 for BlackBerry 7130, 8130, 8350i, 8703, 8830 Users Guide - Manual (Page 31)

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In 3D and 2D moving maps, you can zoom in or out while doing run-time navigation. You can also pan the map up,
down, left, or right using the trackball or the “E,“ “‘F,” “S,” and “X” keys.
On BlackBerries with a trackwheel, use the trackwheel to pan the map up and down. Holding the ALT key while
using the trackwheel allows you to pan the map left and right.
There is a small network activity indicator comprised of two arrows in the upper right corner of the display that will
appear when you change map scale factor. If you pan out of the current route, the map will snap back to the current
route after 15 seconds with no click activity.
The keys for the functions to interact with the map are shown below for the BlackBerry 8830:
Volume Down
Volume Up
Zoom In (*)
Zoom Out (#)
Pan Right (F)
Pan Left (S)
Pan Up (E)
Pan Down (X)