Not sure what's the VO code ID for GHAS but these threads below gives a rough blueprint on a possible procedure.
If you can somehow figure out how the M2 CS Racing or M4 DTM is coded, you can copy and paste that same parameters to eliminate the eLSD and get the DSC to work in harmony without an error, since factory, those vehicles doesn't utilize an active LSD but a standard mechanical Drexler unit.
Good luck
https://f80.bimmerpost.com/forums/sh....php?t=1352309
Is it possible to code GTS Diff or EPS on a MT?
https://f80.bimmerpost.com/forums/sh....php?t=1462467