Just got myself a new 13"MBA with 256GB of storage. I also have a 2011 iMac with 1TB of storage and that is where I keep my Photos library. My Photos library is approximately 90GB in size. I would like to be able to access and edit my Photos library on my iMac from my MBA but don't want to use up valuable storage space on my MBA. I currently have the 50GB iCloud storage plan of which 40GB is used. I would prefer not to have to increase my iCloud storage. I have tried opening the Photos library on the iMac from my MBA through Finder but have been unsuccessful. Does anyone have any tips for how this can be done e.g. other Apps or am I stuck with either having the full library on my MBA or increasing my iCloud storage plan. I have read that for a library to be shared it needs to be on an external drive. I do have a Seagate HDD that I used for my iMac backups so is this an option for me if leave it plugged in to my iMac?