Child height mod

I have a mod on my PC install of Sims 4 that lets me change the height of child sims by typing into the cheat console
I want it on my MacBook too, but I can't where to download.
I got it tow work twice on my PC install, but it doesn't seem to have worked since (but the two sims it worked on kept their modded height). Does anyone know the mod? Does anyone know why it didn't seem to work again?