Separate PCM & DSD paths through DSP

(1) I usually upsample PCM files, either to "Max PCM Rate (Power of Two) or DSD,
which in general requires a Headroom Adjustment of -3dB.
(2) I usually play back DSD files untouched by DSP.

If I have a mixed PCM & DSD playlist, because of DSP being enabled to upsample the PCM tracks
the Headroom Adjustment of -3dB gets applied to the DSD files, but I want them untouched.

Would it be possible to have an option to enable DSP for
(1) PCM & DSD, (2) PCM only or (3) DSD only?
[Or in extremis completely separate DSP paths for PCM and DSD.]