Rebuild | Renew: A Sims 4 Genetics + Building Challenge

ooops before you went to bed @OJenn (I totally should be in bed too!!) I had wanted to ask you something! I noticed for generation 2 it says "marry a townie". Are we allowed to populate our townies or does the one they marry have to be auto generated? I was planning to make an entirely new save but put a favorite family from each in the towns. Like if I put David and Rayann and a couple of their kids in Willow Creek could my heir marry one of their kids? Or if I brought in my favorite sims that you made, do they count as townies? I'm so excited now...11 days and counting!