So I screwed up. I'm an amateur photographer and have thousands of photos in my iPhoto cloud account. I was in the process of transferring my old iPad to my brother and hit the wrong button when changing accounts, and now I accidentally merged the thousands of photos that were saved from my iCloud account into my brother's iCloud account and now he's being prompted constantly to upgrade his account.
Are there any tools to help filter and delete photos and videos from iCloud/iPhoto by any useful means like which camera/phone they were taken with or location?
Nothing is too hacky of a solution!