4. Push the OK joystick button Right for the 4 Lock options submenu to appear:
Lock Current, Unlock Current, Lock All, Unlock All
5. Push the OK joystick button Up/Down to highlight and select the Lock option you
desire.
6. Press the OK button to confirm and save your choice.
7. Press the Menu button to exit and return to the Playback mode.
Note: If you selected either of the Lock options, a Lock icon will now appear on
the files you selected.
To unlock any or all of the files select the Unlock options at step 4.
Thumbnail
This mode is used to select the size of the matrix view the thumbnails will appear on
the LCD when the thumbnail option is selected by pressing the Zoom Out (T) button
in the Playback mode
1. Push the OK joystick button Up/Down to select the Thumbnail mode.