Sony PCG-GRX500K - Manual (Page 27)

Using the Center Jog Dial Control
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To use the center Jog Dial control with software
If Sony software that supports the center Jog Dial control is active, you can use
the functions of the center Jog Dial control that are allocated to that software. For
more information on functions allocated to the software, see the online help file
supplied with the software application.
If the software you are using is not Sony software and it supports the center Jog
Dial control, you can still use the center Jog Dial control to scroll the window or
adjust the window size.
Using the Dialog box
When a window such as Screen Properties is active, the Dialog box is displayed
in the Jog Dial window. You can select an item in the window by rotating the
center Jog Dial control. Pushing the center Jog Dial control is equivalent to
pushing the Enter or Select key.
Jog Dial Guide Dialog Box