Ok, I'm happy to share and learn. Coming up with hypothesis and ideas is easy, not so validating them generally. Here's my next attempt, hoping I get the colour right (from volume bar, close-open?): Yes, you can't program anything unless you know what to program, so first you need to program your mind. Not sure what to find before and after two-bar combos. If it is XB/XR, there's usually some peak or trough associated with it. Maybe easier to read with these lines and should they be adjusted according to volume somehow?