How do I specify a symbol in the quote panel of OptionTrader?

Use the OptionTrader to view and trade options on an underlying.

To create an options order:…

To create a stock spread order in TWS:

1. Enter the underlying symbol of one of the two stocks into a market data line and select Combinations followed by Stock / Stock (SMART)
2. Click in the Underlying field and enter the underlying symbol of the other stock, hit Enter and choose…

To set the underlying and choose a layout in the Option Chain:

1. Type the underlying symbol in the box in the top-left of the window, hit Enter and select the product
2. Choose an Option Chain layout from the "blade" to the right of the symbol, and click…

No, it is not possible to sort the OptionTrader Price Ladder. The OptionTrader Price Ladder is sorted by Strike by default.

More information on loading option chains in OptionTrader…