When looking at K-line charts, I pay more attention to the turnover rate indicator. However, the app interface only shows the turnover rate for the current day, not the historical turnover rate. I can only calculate it using historical trading volume, which is quite troublesome. I hope the historical turnover rate indicator can be added to the interface. Additionally, it would be even better if the volume ratio could be added to the sub-chart, making it easier for me to compare changes in trading volume. Also, in the options trading interface, I cannot directly see the daily K-line for an option at a specific strike price. I have to place an order first, and then I can see the daily K-line of that option from the followed securities list, which is also troublesome. It would be more convenient if I could see it directly in the trading interface.