Expert Advisor Programming by Andrew R. Young

Tips and Tricks
We use the OrdInt variable to increment the order count in the order comment. The first order
comment will be "Buy Order 1", the next will be "Buy Order 2" and so on. The OrderSend() function
places the order with the appropriate stop loss and take profit value, using the Count variable to
select the relevant array element.
This is just one way of handling multiple orders, although it is probably the most efficient. The main
drawback to this approach is that we can only calculate stop loss and take profit prices for a limited
number of orders. Alternately, we could scale the take profit and stop loss values by a specified
amount, and place a potentially unlimited number of orders:
extern int StopLossStart = 20;
extern int StopLossIncr = 20;
extern int TakeProfitStart = 40;
extern int TakeProfitIncr = 40;
extern int MaxOrders = 5;
In the above example, the stop loss for our first order will be 20 pips. We will increment the stop loss
by 20 pips for each additional order. Same for the take profit, except we will start at 40 and
increment by 40. Instead of using arrays, we will calculate the stop loss and take profit in the for
loop:
for(int Count = 0; Count