1. Set an arbitrary square 1 on an open space, point to the square with the mouse, and record the XYZ (861059 24399) of the square;

2. Walk a few meters diagonally according to this square, and put a square 2 on it to form a three-dimensional space with the square 1 At the same time, record XYZ of box 2 (8634 74 24375);

3. Copy command: clone 8610 59 24399 8634 74 24375 ~1~ to replace the recorded box coordinates.

4. When you are ready, take out the command box, go to the entity area that needs to be cleared, dig a grid down, and then fill in the command box. Copy the copied command into the command box. Select a point that remains open to complete the operation.

5. After completion, the command box can be destroyed. This command can be used multiple times. You just need to know where to directly fill in the command box and copy the command. Compared with the /fill command, you don't need to change the coordinates frequently.