Backup and restore

You wrote:  Can I assign a tutor to a group so that they can only see the activity logs and journals of their group.

Quoting from the implementation plan:

• $SESSION->currentgroup[courseid] defines current group.
  • For students it is fixed at the group they are in within that course (set at login and by visiting group page)
  • For non-editing teachers it is likewise fixed at their own group (set at login and by visiting group page)
  • For teachers and higher, it can be switched between any of the groups in the current course, using "group switch menu" which will be available in different places.

It seems that designers will be able to see all students in all groups, but non-editing teachers will only be able to see their own students. Looks like a solution to your privacy problem.