I have an earlier version bbdoc file. Assets are not showing on latest version. How to make them visible again without adding one by one again? Cause I can't add them back again, because I don't have the images. Tried to export, got the atlases but this time how to split the images one by one? You know there are a lot of images in one atlas.png file. Let's say we split them, but this time how to find image names in atlas.png?