Yes, it is possible to bulk upload images on Safari Portal but it is recommended to upload only 5 images at a time.
The reason for this is that if your images are large files or your internet is on the slower side, the upload may time out... and once it times out, you unfortunately will need to start over.
If you would like to learn more about ideal image dimensions to upload in Safari Portal, click here.
What is the ideal size of an image to upload into Safari Portal?
Learn how to harness the full power of images in Safari Portal