BSDF Orientation in three-phase method

Hi all,

I am using manufacturer-supplied BSDF files for three-phase calculations with tubular daylight devices (TDDs). The manufacturer specifies that certain klems patches (specifically 137) are to be oriented south.

However, in dctimestep where the view/bsdf/day/sky matrices are multiplied together, it seems to me that there is no way to rotate the TDD BSDF if I rotate the sky (or equivalently rotating the north angle of my model).

Is there a way to do this that I’m missing?

Thanks in advance!