N.B. The team member will need to log out and log back in for the changes to take effect
This will change their permission, but you may still have to add a module to their user profile.
1. Click on the cog icon
2. Click "Team Settings"
3. Click the edit icon on the relevant team member
4. Click the "Role" dropdown
5. Select the desired role
6. Click "Save Changes"
Learn more: user roles and permissions