Remove Photos from one device, keep in Cloud and other devices
I want to remove all photos from my MacBook Air but keep them on my iMac, iPhone, iPad, and in the Cloud. I have the MacBook Air Photos unchecked for the Cloud, but they are still there. 19.56 GB of them. How can I safely get them off the one device without losing them forever? The MacBook Air is only used for writing. I access photos in the iMac and iPhone, etc.
MacBook Air 13″, macOS 10.15