Sell /Closed all open position in UPSTOX using Amibroker AFL for AUTOTRADE

I want this to use for automated trading in OPTIONS only I am only trading in Call and Put option That too i only Buy Option. Something my AFL code gives the Buy signal ( Before closure of candle: Miss fire) . I want to keep that. i.e. Buy 29000 CE : QTY 20 Again code give right signal : i.e. Buy 29000 CE : QTY 20 Now there are total 40 QTY :But when Sell Signal come only 20 QTY will be sold So balance 20 QTY still remain. I WANT TO SELL all open position when SELL Signal comes Instead of Fixed qty I am using AUTO TRADER for this /******************************************************************** * SECTION 3 – BEGIN * This section contains your code for placing orders. ********************************************************************/ _TRACE("Outside Place Order IF Block"); if ( LastValue(Buy) == True ) { _TRACE("Inside Place Order BUY IF Block"); placeOrderUsingParams(AT_EXCHANGE, AT_SYMBOL, "Buy", AT_ORDER_TYPE, AT_QUANTITY, buyPrice, defaultTriggerPrice(), 1); } if ( LastValue(Sell) == True ) { _TRACE("Inside Place Order SELL IF Block"); placeOrderUsingParams(AT_EXCHANGE, AT_SYMBOL, "Sell", AT_ORDER_TYPE, AT_QUANTITY, sellPrice, defaultTriggerPrice(), 1); } /******************************************************************** * SECTION 3 – END ********************************************************************/ How to replace that AT_QUANTITY with some Other code I have done some research and found this link [login to view URL] 'Second SqOff Open Positions Fetch Positions Check for Product = 'I' or 'D' Check for Net Quantity <> 0 Place opposite order by [login to view URL] Please let me know if you if you can help me out in this. and how much it going to cost me.