From time to time we invite guests to take a look at our curriculum.  Ideally, we'd like to allow access through the portal. We don't want guests to see rosters or directories--any personal info.  At this point, I can create a user that has access to all classes--but can see the rosters.  I have also created separate sections of classes with a "fake" student enrolled. That prevents viewing rosters, but unfortunately, students can see directories.  So a "guest student" or "guest teacher" role that eliminates access to rosters or directories would be ideal.