Common graphic drawing features: including profit-loss ratio tools, trend line tools, Fibonacci retracement tools, rectangle tools, and channel tools. When drawing, you can control the mouse to snap to K-lines or control the same price to draw horizontal lines through shortcut keys. Fast chart switching feature: Use shortcut keys to quickly scroll through your product list, allowing you to focus on full-screen mode. Profit-loss ratio calculation and position control features: Based on real-time