How to conduct I-shaped tiling

  1. Left-click and drag the tile into the drawing area – modify the tile's height in the product properties column on the right side of the interface, for example, change it to 400

         
  2. Right-click to copy the tile and paste it

       
  3. Left-click on the top left corner of the tile and move it to snap to the midpoint of the bottom edge of the tile above

         
  4. Select both tiles by left-clicking and dragging a selection box around them

         
  5. Press the shortcut key F to completely fill the area with tiles