Hi OpportunityDoc,
Thanks for contributing to our forum. As you have pointed out, it is not possible to select multiple consecutive images on your Image Management page through the use of the "Shift" key, but you can select all the images on any given page by clicking within the box located above the check-boxes for the individual images.
Once you have used the “Items per page” drop down menu to set your Image Management page to display the ideal number of images for the deletions you would like to do, you could potentially select all the images on that page using the “Select All” box and then deselect the ones you do not wish to delete before pressing the “Delete” button.
I will also make note of your idea about updating our site to allow users to delete multiple consecutive images using the “Shift” key method you are accustomed to and it will be considered when we are planning future updates to our site.
If you need any further assistance with your account, please feel free to contact our customer support team by mousing over the “Help” tab within your account and selecting the “File Support Case” option.
-Mike