Pentax K-X Operating Manual page 95

Available operations
Four-way controller Moves the selection frame
(Av,_,)
INFO button
Displays the [Multi-img Display Setting] screen. Use
the four-way controller ( , 1_) to select the number of
images to display at the same time.
2
_UP/'_ button
([Display Type] cannot be selected when developing
multiple RAW images (p.234).)
Selects multiple images and deletes them. (p.215)
Press the
OK
button.
A full screen display of the selected
image appears.
Images will be grouped and displayed by the folder in which they are
saved.
1
In the multi-image display
screen, turn the e-dial to the left
(toward []) again.
The folder display screen appears.