You can cancel the cover order only if the buy/sell order leg has not been executed. Your order will remain under open orders until both legs (buy/sell and stop-loss) of the order are executed.
Click here to view the steps on how to cancel an order
To cancel your open cover order,
Go to the order book by clicking on orders from the bottom menu
Under open orders, click on the order you want to cancel. You can cancel the order only if the buy/sell order leg has not been executed. Your order will remain under open orders until both legs (buy/sell and stoploss) of the order are executed
In the buy/sell order tab, click on the cancel button and click on yes to confirm the cancellation
You can only cancel the order if the stop-loss is pending. In this situation, you can use the steps listed here.
To exit a Cover Order position, you need to go to the order book, click on the pending SL, and click “Exit”.