I am marking forestry boundaries over google satellite tiles. The forest in question has areas of farmland within the outer boundary. One area of farmland has a patch of forestry within it's boundary. I need to see the g sat tiles through rh hatching for forestry and lh hatching for farmland. I have tried making farm and forestry separate layers but where farmland is I get crossed hatching. I think I'm asking if it's possible to draw a polygon with a hole in the middle.