I've tried to change the 'Print Grade' form field to a mult-select list. Although I can get the form field to show a multiple select drop down list, it doesn't actually function as such. Once I've made my selections and saved the form - the form remembers only my first selection. I'm afraid my very pathetic attempt at hacking the code dries up at this point .
If anyone could give me the basic steps, or at least point me in the right direction, I don't mind working on it.