private int barcounter = 0;
        protected override void OnBarUpdate()
        {
            if(Bars.FirstBarOfSession)
                barcounter = 0;

            if(barcounter < 20)
            {
                barcounter++;
                return;
            }
            else
            {
               //can trade here
               DrawDot("TAG"+CurrentBar, false, Time[0], High[0], Color.Red);
            }

        }