The block can be added to the courses and shows information of all users with the chosen role. The role can be selected within the central configuration of the block in "site Administration/Plugins/Blocks/Referee of this course". The block shows the profile picture, fullname, department, institution, city and a mailto link. Those 4 fields can be configured to be shown in the settings. There is also a multiselect box to show custom profile fileds.

NOTE: In Github we use an empty master branch. The different plugin versions can be found in special branches for each Moodle version.