You can clear images that were previously marked as key images.
1. From the E-Report Preview window, select the key images you want to clear.
2. From the Viewer toolbar, click one of the following:
Clear Selected Images 
to clear the selected images in the current page.
Clear Current Page 
to clear all the images in the current page.
Clear All Images 
to clear all the images in the E-Report Preview window.
Important: If you unmark a Key Image from the Key Images group displayed in the PowerViewer, the actual image is cleared and along with the key indication.
If you are in stack mode, the unmarked image is cleared and the next image is displayed.
If you are in tile mode, the image and its location are deleted, and the tiles are closed so there are no empty spaces.