This would help keep the screen clear of unnecessary clutter when looking at a list of pupils.
I view iSAMS on a screen that is set up in portrait rather than landscape, so the visible width is limited. We also have several registers in Student Registers which add additional columns to that view. Because of this, when I want to work on the Former Students tab, I can't see the whole of the students' names, so I have to make the view straddle both screens, which is rather cumbersome.
Given that you can show and hide so easily via the cog for the Current Pupils and applicants, it would be great if you could also do it for Former Pupils.
Fingers crossed!