Add more categories of students. Like for Prospects and ones you will never see again

Would it be possible to have another "category" of students.

Right now there are students, Active, Season and Inactive.

It would be nice to have one that was prospects or something of that nature. So that they could be easily identified. Also, it would be nice to have one that was for people you know are never coming back but you want to keep their information. Like graduating seniors, people that have moved, etc.

I will occasionally market to my inactive students but I don't want to market to the ones I know won't be back.