I’ve made a Skinsuit for almost every figure I own, so for me this is a welcome feature, it means I can apply my transmapped 2nd skin outfits to the shell, and not have to remake all of my skinsuits so they work in DS4 (they work as intended in DS1,2&3 as well as every version of Poser, just not in DS4).
The attached pic is an example of what I’m using it for, Genesis with the basic female morph with a V4 texture on the left and the sample Lana texture on the right, the swimsuit and swimsuit transmap are applied to the Geometry Shell.
The preset I loaded the swimsuit with is a DS3 .dsa, but I resaved it as a DS4.5 .duf just to check, as long as you have the shell selected in the scene tab (can’t select it in viewport) then presets will apply as normal.
Click thumbnail to see full-size image