Due to technical problems in Drupal we cannot sort by role, but we can show separately members and contributors.
Because of that, finally we have created the new ‘Trainers and organisers by membership’ page: http://www.mygoblet.org/training-portal/trainers-tabs
showing different tabs of members and contributors. We also show user type in all of them.
‘Guest’ users are ‘contributor’ users now.
Removed ‘guest’ role.