Whether it's macros or whatever else, most photo editing suites have all kinds of tricks for quickly editing photos. Apple Photos doesn't have those tricks, but Macworld shows that it does have a handy copy and paste function that's easy to miss.
After you finish editing a photo in Photos, you probably realise that you have other shots that look similar. You can easily apply all the adjustments you make to one photo to another by tapping Command+Shift+C to copy the adjustments, then switch over to the new photo, and tap Command+Shift+V to paste it. The changes you made to the first image are applied to the second. Photos isn't as powerful as something like Pixelmator, but it does have a few tricks up its sleeve. Head over to Macworld for a few more tips.
The hidden editing power of Photos for OS X [Macworld]