/select - lets the player select two areas that will be used for most of the rest of the commands
/wfill - fills the area selected by the /select command
/copy - copies the selected area to then paste to somewhere else using
/paste
/flip <horizontal|vertical> - flips the selected area either horizontally or vertically
/rotate - rotates the selected area by 90 degrees
/replace <old block> <new block> - replaces all of the blocks specified in the first argument in the selected area, with the block specified in the second argument
/walls - builds walls around the outer edges of the selected region
/height - changes the height of the blocks in the selected region
/schematic <name> - saves the selected region to a schematic that can be loaded later
/loadschematic <name> [location] - loads a schematic that was saved earlier
/removeentities - removes all entities in the selected region
/removeblocks <block> - removes all of the specified block in the selected region
/regen - regenerates the selected chunks
/count <block> - counts how many of the specified block are in the selected region
/setbiome <biome> - changes the selected area's biome to the biome specified in the first argument
/smooth <integer> - Smooths out the selected terrain argument 1 times
/hollow - Hollows out the selected area (turns the middle of it to air)
/move <number> [direction] - moves the selected area argument 1 blocks in the direction of argument 2
/outline <block> - Outlines the selected area with the block specified in argument 1
/naturalize - Changes the selected region to a more "natural" state by replacing certain blocks with different types and adding terrain features such as trees and lakes.
/removeabove <height> - removes all blocks above the selected area within its bounds
/removebelow <height> - removes all blocks below the selected area within its bounds
/snow [height] - tops the selected area with snow of the height specified in argument 1