There, you can select an SVG (map) you want. If you want to delete some countries go back to SVG options and press the gray button Download SVG. Then you have to download Inkscape which is only on a Computer or Laptop. Then you can select any country and press backspace to delete it. When you are happy with your map go to file at the top and click save as. Then you go back to SVG options and upload the SVG (map) you saved. If you have any questions ask me.