APP: Investors who use the Big Wisdom APP then open the APP, click on the upper right corner of the search button, enter the code or name of the stock you need to add, find and click on the stock to enter the stock details and click on the upper right corner of the Add Optional can be the stock to add the optional stocks.

DaWisdom PC version: first search to find the need to add the optional stock, enter the stock details, right-click the mouse, and then click Add Optional to join.