I thought true binning is performed on the sensor. That data sheet extract seems to say you just need to flick a bit in a register on the sensor to change the mode. It's typical qhy really, they push products out the door and then work on the software
I seem to be seeing new drivers and capture software for it on their website every time I look. They now have turned on a 12bit HDR function for it so they appear to be turning up the planetary options for it.