By LMT_PFE_OFX, do you mean the actual DCTL? If you want export a version with updated settings, you can simply copy the original and then manually change the values in the text file.
The ACES OFX plugin can export both DCTLs and 3D LUTs, but the plugin itself is only CUDA and CPU compatible. The export options are CPU driven only, so should still work on a non-CUDA Mac.
Read back over the whole thread (and the LiftGammaGain one) for further information.