I thought I would share another finding regarding the Office 365 Cloud Assignments that I discovered today. I am guessing others may have found this too, but I did not see anything in the community group and decided to share in case it might help someone else as well.
If you have explored Office 365 Cloud Assignments at all, you know that they can not be group assignments. However, that does not mean they cannot be collaborative. When a student opens a cloud assignment for the first time, the file that the teacher attached/linked to the cloud assignment is copied into the students own OneDrive account. Once it is in the students own OneDrive account, all they have to do is share it with members of his/her group and everyone in the group can work on/edit the document at the same time. Of course the student that opened the cloud assignment and shared it with his/her group would be the one that needs to submit the cloud assignment.
The teacher should make sure there are explicit instructions on how to ID members of that group since only one student will be able to submit the assignment for the group.