当我尝试为现有订单设置 SL/TP 时，为什么 "修改 "按钮被禁用？

This may be because you have placed your stop-loss or take-profit levels too close to the current market price.

Alternatively, it may mean that you have set these levels on the wrong side of the current price.

Please note that for short positions (sell orders), stop-losses must be set higher than the current market price, and take-profit levels must be set lower than the current market price.