To set up an option order, click the Option Chain button to select an option contract on the specified underlying.
The Option Chains window displays calls on the left and puts on the right, with the next three expiries and the seven strikes closest to the at-the-money strike. Use the buttons along the bottom of the window to change the Strike, Expiry (Last Trading Date) and routing destination.
Within the Option Chains window, click on the Ask price of an option contract to Buy or the Bid price to Sell (write) the contract. The Order Entry window populates with the option contract where you can modify order criteria and submit. The Option Strategy Builder button in lower right corner opens to allow you to create option spreads and combinations on the specified underlying.