"Add to Set" to include a set count

A student needs to be added to a set with the minimum set count.

Year 10 options the lowest of two Geography classes or Alevel Maths but there are three classes running and so on.... I add all possible set and remove the largest ones, or I go and look the set count up in the Subject View.

A major time saver would be to see the set count for each subject in the "Add to Set" window, see screen shot. That would be amazing!

Thanks