Send one channel different images and files from the rest

Until now an override changed a product's words and its prices on one connection, and the images went out the same everywhere.

Open a product, choose Overrides, pick the connection, and you now get three more rows. Primary is the image that goes first, Gallery is the rest, and both reach Shopify, BigCommerce, Square and Google. Resources holds the files, and reaches Shopify and BigCommerce. Anything you don't override still comes from the catalog.