Seems they have removed the ability to create annotations, so if you want to know what's going on, enable Closed Captions (thanks Google)
This is what I have been avoiding doing for over a year because it terrifies me. I had also mixed this up with another flight controller and only realised that I had to arm the machine (with the button within the radius of the front left prop)
This in no way conveys the amount noise the thing makes and I got shouts from two floors up asking what I was destroying.
It was tied down with paracord, the props where shifted around and upside down so it pushed the machine down onto the table) and using a screwdriver as I'd rather lost a 75 pence prop than my finger.
I was very sheepish about pressing the disarm button at the end and unplugging the battery.
Anyway it's now ready for it's calibration flight (weather, sanity and shaky hands permitting)