Respect the capability for displaying the fullname

Setup Log in as admin Navigate to Users > Permissions > User policies Set Full name format to "firstname" Set Alternative full name format to "firstname lastname lastname" Press Save changes Create three new users: Terry Teacher Sally Student Sanjeet Student Create a new course Enrol Terry as a teacher, and Sally/Sanjeet as students, in the new course Navigate to course participants Select Permissions from the Actions menu In the Advanced role override select Teacher Prohibit the Always see full names of users capability Test Log in as Terry Teacher Navigate to previously created course Press Participants Select Groups from the Actions menu Press Create group Give it a name and press Save changes Select the group and press Add/remove users Confirm that Potential members only displays the users' first name Add Sally/Sanjeet to your new group Confirm that Group members only displays the users' first name Press Back to groups Confirm that Members of: [your group]) only displays users' first name Press Auto-create groups Set Group/member count to 2 Set Select members with role to All Press Preview Confirm that Groups preview only displays the users' first name