Backup Photos App to Amber X in macOS

1. Go to Backup pool.
2. Go to New Backup Task.
3. Select your Amber X. Click next.
4. Go to Root folder.
   
5. Go to users folder.
   
   Select your user.
   
6. Go to pictures.
   
7. Go to Photos Library.photoslibrary.
8. Then select originals.
   

Now the Amber iX desktop app will backup Photos app photos from iMac to Amber X.