The operation steps for drawing a rectangular area are as follows:

1. In the 3D/Wandering interface of the custom tiling module, right-click the ground with the mouse - select "Add Tiling" (Note: Double-clicking the left mouse button can also enter the canvas editing area);

2. Enter the canvas editing area - move the mouse cursor to the "Draw Area" above - click "Rectangle" (Note: Directly select ordinary good tiles, draw according to the position of the tiles, and set the drawing starting point of the rectangle);

3. Click the "Starting Point" with the mouse - and then click the "End Point" with the mouse (Note: You can also directly enter the size on the computer keyboard);

4. Right-click to exit and complete.