PendingOrder

var limitPrice = Symbol.Bid - 20 * Symbol.PipSize;
var result = PlaceLimitOrder(TradeType.Buy, SymbolName, Symbol.QuantityToVolumeInUnits(0.01), limitPrice, "myLabel", 20, 40, ProtectionType.Relative);
if (result.IsSuccessful)
{
    var order = result.PendingOrder;
    Print("Order {0}: {1} {2} {3} at {4}", order.Id, order.OrderType, order.TradeType, order.VolumeInUnits, order.TargetPrice);
}
else
{
    Print("Order placement failed: {0}", result.Error);
}

limitPrice = api.Symbol.Bid - 20 * api.Symbol.PipSize
result = api.PlaceLimitOrder(TradeType.Buy, api.SymbolName, api.Symbol.QuantityToVolumeInUnits(0.01), limitPrice, "myLabel", 20, 40, ProtectionType.Relative)
if result.IsSuccessful:
    order = result.PendingOrder
    api.Print(f"Order {order.Id}: {order.OrderType} {order.TradeType} {order.VolumeInUnits} at {order.TargetPrice}")
else:
    api.Print(f"Order placement failed: {result.Error}")

foreach (var order in PendingOrders.Where(pendingOrder => pendingOrder.Label == "myLabel").ToArray())
{
    if (order.DistancePips > 50)
        order.Cancel();
    else
        order.ModifyStopLossPips(15);
}

for order in [pendingOrder for pendingOrder in api.PendingOrders if pendingOrder.Label == "myLabel"]:
    if order.DistancePips > 50:
        order.Cancel()
    else:
        order.ModifyStopLossPips(15)

protected override void OnStart()
{
    PendingOrders.Filled += OnPendingOrdersFilled;
    PendingOrders.Cancelled += OnPendingOrdersCancelled;
}

private void OnPendingOrdersFilled(PendingOrderFilledEventArgs args)
{
    Print("Order {0} filled, position {1} opened", args.PendingOrder.Id, args.Position.Id);
}

private void OnPendingOrdersCancelled(PendingOrderCancelledEventArgs args)
{
    Print("Order {0} cancelled, reason: {1}", args.PendingOrder.Id, args.Reason);
}

def on_start(self):
    api.PendingOrders.Filled += self.on_pending_orders_filled
    api.PendingOrders.Cancelled += self.on_pending_orders_cancelled

def on_pending_orders_filled(self, args):
    api.Print(f"Order {args.PendingOrder.Id} filled, position {args.Position.Id} opened")

def on_pending_orders_cancelled(self, args):
    api.Print(f"Order {args.PendingOrder.Id} cancelled, reason: {args.Reason}")