Finding an image to edit on the image list
In order to reach this option, click the choice "Choose from List"

This form presents a list of all the images except web graphics and those which have been marked as "checked off"

For each image there is an option to delete the image which will permanently remove the image from the database (There is a confirmation page prior to the final deletion.)

There is also an option to edit, which leads to the form for editing a single image.