and for your other question marks....the numbers above and below the 34 in blue and red is the depth of the market. Those are the orders that are sitting at that price. For example, the 494 below the 34 represents 494 contracts that are waiting to be bought at 1005.75. It's important to note that these numbers are mostly bullshit and completely worthless. The market will trade thru these price levels and you can bet your bottom dollar next to none of those contracts will actually execute. There's lots of games being played on market depth. It changes to quickly for it to be of any use to the human eye. A computer may be able to do something with it but I doubt that too.
The B/A Diff Total is the difference between the quantity bid vs offered at a certain number of price depths. On your example you have 5 so the B/A differential is -69 on 5 levels, or down to 1004.75 and up to 1007.00. Again, since market depth is of no use then this number is of no use. IMO...the only thing the order pad is good for is entering orders.
