kenxplay
I was able to do it, I had to add the date field in a "built-in" form, I used the "Additional request information" form and added a date field, in the variable box i put "test_duedate". Then in the DB I found "ost_queue_column" and changed the "duedate" to "cdata__test_duedate". That allowed for the duedate from the "additional request information" form to populate in the queue field "Due Date".
I still had an issue with trying to sort the queue. So I went back to the DB in "ost_queue_sort" and changed "Due Date" to "-cdata__test_duedate". Now it is functioning properly.