I accidentally deleted a 3-4 images from a collection in LR mobile, but I don't know which 3-4 images? It's a curated collection of 1,200 images, and now I don't know which images I accidentally deleted. I am working on multiple collections in parralel and thought I was editing out images in a different collection. The issue is not recovering the image files, which were not deleted and which I still have in my catalog and on my disk. But how can I know which 3-4 images it is that I need to add back to this collection? I have a recent backup of my LR catalog (does that include collections?), is there a way to pull just one collection out of there? Sort of like a "revert to backup" specific to just the one collection that I accidentally deleted images from?