I've starting using the Photos app built into Mac OS (El Capitan). I appreciate the great integration with iOS/iPhone and iCloud. However, I'm not seeing any features that will let me make significant changes to the metadata, except for Title, Description, Keyword, and Location.
Are there any built-in tools or third-party extensions for Photos that will allow me to edit other metadata?
If so, can I apply metadata changes to a group of photos in this app, i.e., to a batch?