You go to Great Wisdom official website to download a copy of Great Wisdom New Generation and then install and use the free version. If you don't have data before 2006, you can choose to download data from open software that date down to several years ago. If you don't know how to play, you can call the official customer service number of Great Wisdom. Very easy to solve! Ok, what stocks do you need to know, such as 002450 entry. Just look at the arrow keys and you will have the coordinates. It will help you see everything you want!