@TroyTalks For what you're trying to do, you'll need NRaas Traveler; adding ErrorTrap and Overwatch is a really good idea too, since the travel transition can break even with Traveler in place. With Traveler, you can have all of the interconnected worlds you want, and you or your sims can travel back and forth among them as often as you'd like.
Porter, on the other hand, simply allows you to pack up large groups of sims and save them as you'd save a household to the bin. You can then drop the sims into a brand-new save, and the sims you packed together will have their relationships with each other intact. It's just a better version of the EA-standard bin transfer in that it allows you to bring larger numbers of sims into a world while keeping their relationships with each other. But you'd still lose all the data from the previous town and the sims you left behind there.
