Modify Order Strategy
This strategy places an entry stop buy order. When the close price of a candle is more than 9 pips lower than the close price of the previous one, the entry stop price is moved down, and the amount of lots is doubled.
The entry stop distance can be defined in the settings before running the strategy:
If the close price of the last candle is more than 9 pips lower than the close price of the previous one, the order is modified: