I have created a Q&A website (http://lektiesos.dk) in my own language (Danish), where students can write questions to their homework. When a user creates a new question, category is used to qualify the class (Danish, Math, English etc), and sub category the homework level (1-3 grade, 4-6 grade, 7-10 grade, college, university).
What I would like is for the Q&A system to remember the sub category by user after question 1 has been asked. Future questions by user should then default the sub category automatically.
It makes good sense for me, as my users will typically want to stick to the same sub category. Can this be coded in Q&A?