Login as admin Create two new users ( user 1 & user 2 ) Create a new course Enrol user 1 & user 2 as students in the course Visit the course participants page Click on the user 1's role assignment icon Press x to remove their student role Press Save changes In the Search keyword or select filter element select Role: no roles Confirm user 1 is present in filtered participants, and user 2 is not present In the Search keyword or select filter element select Role: Student Confirm user 1 is not present in filtered participants, and user 2 is present