[Plugin: Image Store] Adding more than one image to a package order

I have created a package that includes many images, but when i select many images from the frontend and then select the package after clicking checkout it adds a package for each photo selected, for example if i select 10 photos to add to a package that includes 10 photos for ￡10, it will create an order for 10 packages (one for each photo selected) and charge ￡100. Is there something I am missing, any help would be greatly appreciated.

Thanks.

Paul.

https://www.ads-software.com/extend/plugins/image-store/