Hi Tom Dennison,
Thank you for reaching out to us.
We apologize for the inconvenience. Currently, image files are not directly supported in the 'Drag file here' section. You can able to Zip the images and upload into 'Drag file here' section. However, we understand the importance of this feature and will consider adding support for image formats in the future.
We have created a feedback request for this enhancement, and it is currently in our queue. You can track its progress through the feedback.
Please let us know if you have any further questions.
Regards,
Naveen M.