How to move older photos off Mac to external HD?
I have about 5 years of photos on my mac and its running out of space. I'd like to move older photos to an external USB drive, but not sure how to do it. Is it possible to partition the photos library into multiple libraries, such as each year (2015 library, 2016 library, 2017 library, etc..)? I would like to keep the most recent photos (last 2 years) on my mac, but if I need older photos I can just plug in the external drive.
Any help is greatly appreciated!
MacBook Pro 15", macOS 10.13