This tool allows you to do all the little actions needed to have a nice creative world using only one command.
Settings :
Disable rain
Set annoying gamerules to false
Disable mob griefing
Disable day/night cycle. Time :
Give a permanent night vision effect to the player
Kill withers if they escape from their cage
No inventory swapper
Minecraftster148790's inventory swapper (quartz)
Minecraftster148790's inventory swapper (iron)
Slimestone inventory swapper