2WD mode same as Dyno mode?

[Power6]

I do know there is setting for "dyno wheels", i.e. my S60 T6 is set to AWD. Now when you put the car in Dyno mode, I am not sure if that is simply a flag to the systems so that ESC and ABS and such properly allow for dyno running on a 2WD or AWD dyno, or is that an actual *selection* of the drive wheels. On some models (like the Haldex style AWD) it's certainly with the capability of the hardware.

At any rate, adding Dyno mode set is something on my list to add to OrBit. Do you already have a way of changing the operating mode of the car?