Click the right mouse button in the blank space to find "Common Indicators" in the drop-down menu and "Common Indicators" in the submenu;

Click "Trading System" in the pop-up menu;

You can choose the indicator you need, click on it, and the arrow of buying and selling tips will appear on the K-line chart.

Red B: B is the abbreviation of English BUY, and the Chinese translation is "? Buy "means you can buy; B just buy some tips.

Similarly, green represents sales.