If you'd like to assign/change the roles within a specific group you should:
- Click on the Groups tab from the admin dashboard.
- Select the Group you would like to change roles within.
Once you are in the Group's dashboard:
- Select Roles
- Search for the user you wish to modify in the search box in the upper right hand corner of the window that has appeared
- Modify their role by ticking/unticking the relevant boxes - i.e. Group Admin, Group Tutor etc.