Faster /fill /clone /tp

/fill and /clone are some very useful commands, but it take to much time to type in the coordinates. My solution: The chat already shows some coordinates after typing /fill, but only one at time. Example: /fill -> ~ or x coordinate -> ~ or y coordinate -> ~ or z coordinate I have to type the x,yz coordinates one by one. My solution is, to show all 3 coordinates as one. Example: /fill -> ~ or x coordinate or x,y,z coordinates A third option with x,y,z as suggestion together would make the typing process way more faster