Sharing subfolders

When you decide to share a folder, you automatically share ALL its subfolders.
You can’t modify the sharing property of a subfolder if a parent folder has been shared.

Exemple:
Your PHOTO folder contains 2 subfolders: PHOTOFAMILY and PHOTOFRIENDS.
If you wish to share only the PHOTOFRIENDS subfolder, you can’t share the PHOTO folder and unshare the PHOTOFAMILY subfolder.
You need to unshare your PHOTO folder and to share the PHOTOFRIENDS subfolder.