Select tiles on the tilemap or Tile Palette with the Pick tool
Use the Pick tool to select a tile or tiles from the tilemap or tile palette, which you can store as Brush Picks. Stored Brush Picks keep their specific Brush settings and you can load them when needed.
Select the Pick tool from the toolbar, or press its shortcut key I.
Select tiles on the Tile Palette window or the tilemap in the Scene view with the Pick tool. Click and drag the tool over several cells or tiles to select more at once.
The Pick tool automatically switches to the Paint tool after you select the tile(s), and you can then paint the selected tile(s) onto the tilemap.