Hi Ms. Hoang,
We use a similar add-in for Production planning based on sales inquiries, so to answer your question:
1. It is possible but it would require approvals and the help of your macro expert.
2. Once again you need the help of the macro expert.
3. No there is no tutorials however your company would have a manual for the same.
I hope I answered your question.
Regards,
Vijay