Can't, change breaks things. Things can only be added in powder toy.
So why doesn't it take a long time in powder?
I hate when people use that argument because there is a file where you can make it so that it only works on the new version and not any other saves.
what magical file is that?
https://github.com/FacialTurd/The-Powder-Toy/blob/master/src/client/GameSave.cpp
somewhere around line 1486
You mean: