iCloud Photo Library really confuses me. I have a backup folder with all my old photos on PC (with iCloud control panel installed). Now there's no way to sync photo from Itunes as I am on iCloud photo library. And i tried copying all my old photo into the iCloud Photos folder but apparently it only syncs photo taken within 30 days (which are currently on my iPhone already). Anyone know how to copy/sync old photos to the damn iCloud Photo Library?