Note that this won’t work for things like cropping or retouching (i.e., adjustments that are typically unique to each individual photo). With the Photos editing interface visible, use the various options to make the desired corrections. Alternatively, you can select an image from the Photos browser and press the Return key on your keyboard. To do so, double-click the image to select it and then click the Edit button in the upper-right corner. Once the images you want to edit are all together, you first need to edit a single image.
Normally, you’ll want to batch edit photos that were shot together in order to correct for issues like exposure or white balance, but if your images weren’t taken together, you’ll want to curate them into an album, as this will be necessary for the later steps.
For our example, I have five bird photos in my Photos library that all have a yellow-green tint that I’d like to correct.
