Hello, the first red line is quantity. 1 indicates that the order quantity set by the system is 1 lot, and -0. 1 indicates a decrease of 0. 1 lot. Click once to indicate that you are ready to place an order. Press once to -0.066. 1 in the middle is the order quantity set by the system. You can directly click 1 to modify the quantity before placing an order. For convenience and quickness, you can click the plus sign and minus sign on the left and right to modify.

The second red line is the stop-loss price set when placing an order.