Restricting played sims from showing up on lots outside their world?

I guess EA wants to make sure that there are enough Sims in every world without them being flooded even more with townies. If you disable all residents from showing up in every other world except their own, you either have quite empty worlds or masses of households. In fact, my favourite mod (that is no longer updated by werbeesu), was doing the opposite as it would prefer my own played households over unplayed Sims to spawn when I visited a lot. I loved seeing my own Sims around instead of just some randomly generated NPCs.