I reviewed this indicator briefly and tested it in the back tester.
I think this is what the Length input is for. The smaller the value, the less time it takes to paint a signal. You are asking that the indicator be able to determine a major reversal, as if a large Length input is used, but have a little delay time, as if a small Length input is used. What you are asking would break the logic of the indicator. It would be more than just a "reset".
Furthermore, even if it were done and the indicator showed when a major reversal would occur with only waiting for 2 candles or so, the indicator would either need to repaint whenever it is wrong (which it will be wrong). Or else, it would never repaint, but have so many arrows on the chart that it is not worth using anyways.
I do not think this indicator is worth the time to modify. I'm just being honest. Thank you for sharing anyways.