I keep all my photo archives in dropbox. By default, all photos are stored only in the cloud - that is, online. In the Finder, I can tell Dropbox which folder or file(s) I want to make available offline. But I would like to have offline all RAW image files with a rating of 3 or higher, I assign the ratings in Adobe Lightroom Classic, which stores it in an .XMP file with the same name.