You have two options to cancel your orders on DSX.
On the Trade page scroll down a bit to the “My Orders and Trades” tab. The first tab is “Active orders,” where you can find the “Cancel” button. Use it to immediately cancel the order.
Note: this section will only show orders for the opened on the trading platform currency pair. You can open another currency pair to check active orders there.
Another option to cancel your order is to open the Reports page, “My Orders” tab. There you can filter active orders and click the “Cancel” button to the right of the order you wish to cancel.