Usually, what we need to do is suspend all lessons of a class (eg 1A/En, 1A/Fr, 1A/Hi, 1A/Rs). It would be much quicker to do this if they were listed like this rather than by subject.
Normally whole forms are out for a day and it's slow to scroll through the whole list of subjects. You can suspend by subject on the Subjects screen, so to organise the Groups alphabetically would be very helpful.