New things to consider

Making posters stackable. A light block. When in land editing mode it would be nice to have a way to get rid of the trees and plants without having to knock them all down by axe. Besides having a favorites mode for blocks, have a way to hover over a block with the mouse and it shows the block id number. Wood that can be used as decorations would be nice, like a stack of wood you could place in or near a storage building you built. The fireplace is a bit large for building a fireplace in a building, maybe make it smaller or have a smaller version. Oh yeah and water lol. I thought of something else, when you put a building down like from a blue print and say you no longer want the building you built originally, it would be nice to have an insta destroy or flatten, takes a while to destroy a building with a pickaxe.

I know about that, but you still have to destroy stuff you built by hand. I know how to destroy land instantly, or make deep caves etc.

Is world edit a third party program? I use the ~ key to bring up the console and then type setgametype 1, not sure if that is considered world edit, I thought that was called creative mode. Thanks for the tips.