I would appreciate software recommendations for trading spreads on futures. My understanding is that XTrader Pro actually creates an implied price based on the defined spread, displays that price in the DOM, and when you place an order against the implied spread price it simultaneously executes all of the legs for you. Please correct and/or augment as necessary. Many thanks in advance if someone could post a screen shot or two of this feature in XTrader Pro. Any and all suggestions are appreciated.