2 questions regarding TS2-style aging.

If it's the birthday of a sim (days until age change = 0 days) when you switch families, and you hadn't aged up the sim before switching, the game ages them up anyway after you leave the family. Is it possible to freeze them at the "day 0" without the game pushing them up an age while you're not playing them? Or do I need to subtract a day from their age before leaving to prevent the game from aging them up (and how would I do this)? Other sims also seem to increase in age by 1 day when you switch/return, so the affect is that the sim ages 2 days in a "single" day of play on the switch-over day.

Is there a cheat to "add X days age to all sims that are not gods-chosen-children", so that at the end of a round of TS2/prosperity style playing you can age the townies without aging your sims further? If not, is it one that's possible to be added?

Thank you very much for creating a mod that fixes the dreadful state of story progression and makes a prosperity-style play *possible*, even if not yet ideal.