When opening a file or folder that is "Shared with Us", open in a new tab
Now that we can share a file or folder with an Office 365 Group, it appears in the Shared with Us view of Groups Files. When we open the file or folder, we are taken away from the context of the Group to the file/folder location. The only way to return is to use the browsers Back button.
I demonstrate in this video - https://youtu.be/oQX9z4I__aM?t=9m55s
Please open files and folders in the Shared with Us view, in a new browser tab or window, so we can easily return to the Group.