Figured it out.
IF you open the downloaded girls lists that you have, and click on the girls name it loads their traits/stats/etc. Underneath all the traits/perks on the left hand side is a drop-down for "normal, slave, or Catacombs only." Adjust the girl(s) from normal to slave... and there you have it, she'll show up just as the other ones automatically marked slaves do. Likewise, go into the random girls list, turn them onto only in catacombs or normal, and they'll start showing up less frequently.
**Edit Part 2**
Changing the status, doesn't make here/the girls show up in the slave-house as a buyable character... only that once you encounter them on the street, you get them as slaves (thus 100% gain in funds instead of 60% default.)
... so I'm still looking
**Edit** (below)
Sure enough, open the notepad files, click Edit, replace, and then for search type Status="Normal" to Status="Slave"
If you just replace Normal with Slave, it screws up the "NormalSex" category... so you have been warned!
Hope that helps. Right now it's one by one, I'm thinking of doing a find--> replace option in the text file itself to see if that works simply to make it quicker.
Thanks guys