AndyB London Breakout Box Strategy

The AndyB London Breakout Box Strategy is a time-based breakout strategy designed for traders who focus on the London trading session. It automatically draws a range box from a configurable time window (default: 02:00–07:00 London time) and places simulated long or short entries when price breaks above or below this range.

This script allows flexible configuration of:

Box timing (start, end, and cutoff hours in London time)
Take Profit (TP): either based on the box size or a multiple of the stop-loss
Stop-Loss (SL): either half the box size or based on the distance from the breakout candle's close to the opposite box edge
Two logic modes can be combined:

Use the entry candle’s close for SL and calculate TP from that distance
Or use the box size as the base for SL and TP

Test on Gold M15 (or M5) for trading ideas.