The P&L Today Book Menu
Displaying the Book menu in P&L Today mode calculates and displays the daily
profit and loss of all strategies that make up the book. The previous price
(yesterdays close) is used to calculate profit and loss in this view. The menu is
displayed as shown below regardless of whether the menu is minimized or maximized.
Daily and total profit and loss are calculated simultaneously in the book
menu. Before the book menu will show profit and loss, you must
define a strategy.