There is no possibilty to add a ‘Product Image’ (featured image) to the product, you can only add images to the ‘Gallery’. It would be great to have this option too, so that you don’t have to add this single image in the backend of WP. Thanks.
(StorePilot v1.0.6, macOS 10.13.6)
This is actually possible by dragging image to the most left position in StorePilot. This will make the image featured, but we agree that the UI could be improved. Added issue: https://github.com/StorePilot/storepilot-releases/issues/3