If you have stock options or common stock from a public company, you can now place limit orders that will remain outstanding for up to 30 calendar days. If you are attempting to sell at a particular limit price, selecting Good Till Cancel will allow the order to trade for multiple days without re-entering each day.
Upon entering a cashless exercise and sell, cashless exercise and hold, or stock sale, selecting Limit order now enables the choice of Day or Good until cancelled.
Selecting Good until cancelled enables you to place an order that remains outstanding until the earlier of 30 calendar days, or your entry into a trading blackout.
Following placement, you can view your order in the Orders screen. This view now shows order duration, where you can track both Day and Good Till Cancel orders, in addition to the date that the orders will be cancelled if they are not executed: