Allow user to change grade boundaries
Allow the user to change the boundary of grades except for the ones that are fixed by the General Examination Regulations (so 1.0, 1.7, 2.0, 2.7, 3.0, 3.7).
Allow the user to change the boundary of grades except for the ones that are fixed by the General Examination Regulations (so 1.0, 1.7, 2.0, 2.7, 3.0, 3.7).