I'll quietly chime in that I'm fond of transmapped brows also. :) It's nice to have the option available.

It may be possible (for someone who can model, that person is not me) to make a conformer for the brow region. I haven't read through the entirety of the thread to see if some of the auto-follow or morph-helping features are in play to know how potentially easy or hard this would be to fit to any included morphs, but brows are in an area where you'd really want to hope that's the case, since most head morphs (shapes and expressions) would be in play there.

Without a conformer or brow geometry, Poser can handle this with masks and blender nodes, but depending on how wild any potential makeup on the face is, you may end up with a bit of a blend line if the differences are fairly stark. Likely not something you'd notice at a distance, but may be visible in some close up renders. DS has the shader bricks  -- which sadly I know less than nothing about -- and the Layered Image Editor (L.I.E.) that could probably manage it quite well. The way L.I.E. works has changed a bit in recent versions from its 'original' form; I used to be able to offer some advice on 'the old version' but will admit to being somewhat at a loss with its more recent incarnation.

(I'm working blearily through the holiday. Somebody grill a hot dog in my honor, maybe? :) )

-D
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It's all fun and games until someone loses an eye texture.