A Bracket order can be created and submitted using the following steps:
1) In the order entry window, select "Bracket" from the drop-down menu ("Other").
2) Select the price trigger price method for both the "Stop" and "Take profit" values. For this select either the mark, last or index price as the applicable trigger price method.
DISCLAIMER: Please note that the selected trigger price method can significantly affect the timing of when your order is triggered.
3) Insert the preferred stop loss price ("Stop"), take profit price ("Take profit") and size. Select the preferred time in force function ("GTC" or "IOC"), Attributes ("Post-Only" and/or "Reduce-Only") and at last the direction (Buy or Sell).