Hallo,
the idea was that for the user with the role "user" should be allowed just to see (some) things and he should not have the possibility to fire any action (We have planed even to hide the dots for user with the only roles "user" see
this issue), but I will discuss that internally maybe we can allow the user role to open a viewer. Anyway so I can understand, what's the reason in your case that you want to use the study list from our UI, so you can open a viewer, dose the viewer that you are using not have his own list?
Regarding of "Logout" issue, pleas upgrade to the newest version of the ui and than check again, if the problem still remains, than open another thread so that the others that have the same problem, can benefit or can be involved in the discussion.
Best Regards
Shefki