i honestly dont remember all the changes i have made in this mod. Which is why i dont recomend its use.
Point of this mod was as far as i remember, was to allow A) building stargate sooner than SE intended, but as soon as it was originaly added if played without SE.(i made seperate mod for this i recomend using that one)
b) allow building some building in space (i think it was memory storage mod, but i dont remember anymore)
c) some items like fusion reactor and some others which were not included in other simplifier mod and i had in my mall so that i wouldnt have to remake whole mall.
I think it is safe enough to use, but i would recommend doing some creative mod testing for it if you really want to use it.