The Orderbook provides the option to place a "Cancel Order".

• Cancel Order - Right-click on a live or partially filled order and select "Cancel Order." This will send a request to terminate the unfilled portion of the order.

  You can also double left-click on the live order to send a request to terminate the unfilled portion.

  

  Note: You will be asked to confirm your order cancellation request IF the "Confirm order cancellation" option is checked in the "Preferences-Order Entry" window.