Juniper Allegro CE Owner's Manual page 72

Tap on the Change button to access the change connection option.
Tap on the down arrow for a pull-down list of connection options.
USB MultiSync is a function available through the Allegro CE. It is
used with Microsoft's ActiveSync program through the use of the
USB/Power Dock. This option allows multiple Allegros to connect
and disconnect automatically. This function and its options are
discussed in greater detail later in the ActiveSync section.
❖ Note: The MultiSync functions are also accessible when using a single
Allegro connection through the USB/Power Dock.
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