I finally decided to give iCloud Drive a real shake and migrated all of my Google Drive folders to iCloud yesterday. I am really anal about how I manage my folders and stuff, particularly where my college coursework is concerned (I have all my old work archived by course). I have been messing around with iCloud Drive for a few hours this morning, and was perplexed that I couldn't drag a group of folders from one location to another, only to discover that I couldn't even create another folder in this directory. Apparently you can only have one layer of subfolders in Drive? Does anyone know what the reason for this restriction is? Is it a holdover from the old iCloud Doc storage limitations (i.e. the built-in iCloud storage option in iWorks apps like Pages), or is this permanent? It seems like a strange and arbitrary restriction, especially when you can have multiple levels of subfolders if you drag in an pre-existing folder structure; it even works fine on the iCloud site and you can drag files into these multiple subfolders.