Can I create polygons behind/in front of maps like you can do with scenerys? If it's possible...how?

when you make fog...don't you use a bright poygon on a dark in front of a background? if not..plz tell me how you do it..(im a mapmaker n00b)

No, you cannot layer polygons. That has been on my wishlist since day numero uno.

To create fog, simply zoom out, click to the scenery option behind map and make sure you check scale width and height. Then adjust the transparency to around 50, and then choose whichever scenery graphic best suits your map. After that you can place it wherever you wish.