Office 365 Groups Files new UI and file management

Office 365 Groups receives the new UI and features experience, working towards parity with OneDrive for Business changes.

• Move and copy files and folders around using an improved folder tree pane.
• Share files and folders with specific people who are not members of the Group
• Improved details pane, showing a preview of the document, who it is shared with and other file information.

This is a further step to bringing richer document collaboration to Groups.