QFL means Quickfingers Luc
This strategy depends on price support levels called 'bases' here and finding a possible dead cat bounces.
The bot is finding bases after the drop below which the price should bounce due to dead cat price model. After the drop, the bot is starting to make new deals.
The full description of QFL strategy is long enough, and everyone who wants to know more about it can find more details using the following links:
Available algorithms for QFL.
The lower drop the algorithm waits for, the less frequent a new deal opens.
The percent field represents the price drop below a base. With 3% the bot waits until the price is 3% below the base.