1. On a 15m chart, calculate and plot upper & lower and of 20 periods. (DONE)
2. On a new day, when the first 15m candle of a session forms, I want to check if a) the low of the new candle is outside the upper (also known as an open gap up) or b) if the high of the candle is the outside the lower (also known as open gap down). In other words, I want to know if the are not touching the new candle's wicks/shadows. (DONE)
3. Alert me if the above happens. (DONE)
4. Run the indicator through an entire watch list. I'm not sure if that's possible, yet. (HELP)
For the above job, this is what I could come up with. I need guidance for the last step. And any suggestions for corrections or improvements would be greatly appreciated!