Sony PCG-GRX500K - Manual (Page 25)

Using the Center Jog Dial Control
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To use the launcher mode
The center Jog Dial control window is in launcher mode until a software
application is launched or the Jog Dial control window becomes active. When
you select an item in the Jog Dial control window and it is displayed between
orange bars, you can push the center Jog Dial control to view a submenu of that
item.
To use the center Jog Dial control, click the Jog Dial control window or the Jog
Dial Utility icon in the taskbar. Alternatively, you can press the Ctrl key and the
center Jog Dial control while the Jog Dial control window is active to switch to
launcher mode.
To select a desired item, proceed as follows:
Jog Dial Launcher Mode