Canon WFT-E9 Advanced User's Manual page 110

3.
View the images.
When [Update] is selected, the images added will be displayed.
Select [Select] to make multiple images selectable.
Select a thumbnail to select that image. Select the thumbnail again to
clear the selection.
Select [Select all] to select all images on the image viewing screen.
Select [Clear all] to clear all the selections.
Select [Cancel] to return to the image viewing screen.
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