Fill an empty area with tiles with the Flood Fill tool
Use the Flood Fill tool to fill a contiguous area of empty cells or identical tiles with a selected tile.
Select the Flood Fill tool from the toolbar, or press its shortcut key G.
Select a tile from the Tile Palette window.
At this point, you have two options depending on what you want to do:
To fill contiguous empty cells
- Click on an empty cell on the tilemap with the Flood Fill tool to fill all contiguous cells with the selected tile from Step 2.
To only fill identical contiguous cells
- To only fill identical contiguous cells, click on a cell that already has a tile with the Flood Fill tool. The tool replaces the tile of all contiguous cells with the selected tile from Step 2.