Hi, DocClox, welcome back.
No problem
You can't, yet. The code is only in my development branch, and even there, I don't have support for it in the girls editor.
So you want a config file option so that all daughters will be drawn from the unique girl pool where possible, rather than from the random ones?
Yes.
When a unique girl "gets" a daughter. The mother gets her always from a folder "daughters". There and only there unless the folder has been used for 100% .
And this means that unique daughters can only be part of the game if unique girls having babygirls.