In Custom Tiling, you can use the Tile Duplication function to duplicate tiles and the Tile Deletion function to remove tiles. The operation steps are as follows:

1. Drag the tile into the drawing area by holding the left mouse button – Right-click on the tile – Left-click to select Copy Tile;

                  

2. Right-click on the wall – Left-click to select Paste Tile;           

3. To delete, select the tile and then press the Delete key to remove it.