Batch/Mass Image Uplaod to Gallery
Having to upload 56 images to a gallery has made me no longer able to ignore how time-consuming and clunky this process is when compared to even the simplest of alternatives... such as Magento, and even WordPress with WooCommerce...
I suggest you use FTP to upload this many images at once. There are size limits for browsers, so AbleCommerce was never intended to double as an FTP client. We use Filezilla. It is free and a very good FTP client.