I looked and didn't find this. I like the classic way I configured Dazstudio 3. I have not found a way to make 4 look like the V3 interface. Is it possible to do?
The darkside plugin helps give DS4 more of a DS3 feel.
Were can I find the darkside plug-in?
Go to Window > Style > Select Style, and Darkside is one of the options. You can also use Preferences to have the tab names running along the top as opposed to down th side (vertical).
V3 is what people call Victoria 3. For DS version 3 it would be less confusing to say DS3.
The interface is 100% configurable. Just use Darkside and put the rest where you want it or open it when you need it. This is my DS4.5Pro, very DS3 like to me.