Just wondering if Photos.app can do a thing I use in Aperture - Being able to select a folder, or album or smart album or whatever, and then right click, and choose "Export (thing) as new library...".
I don't want to be creating extra copies of images, it's more about creating a new library structure, that still references the same files on disk, it just lets me create a new library that's limited in scope to the images that were in the object exported.
I don't want to be creating extra copies of images, it's more about creating a new library structure, that still references the same files on disk, it just lets me create a new library that's limited in scope to the images that were in the object exported.