[2020] Creative Mode?

Either enable cheats before loading into the save which will open access to the creative menu via the U key; Or hit F1 to open the console and type CM which will do the same thing. You may also want to use DM as that will enable other options like Q for god mode and such.

The wiki and the commands are outdated. The new wiki is wiki.play.eco and the new commands can be found ingame via /helpful.