Two map display questions

Gents, I need help with two things.

  1. I want to export an image of the map that shows movement trails. Is this possible at all? I have tinkered with various settings but not found a way to do it yet. Failing that, is there a way to display lines in VASSAL? I could just go and do it in an image editor, but I would rather do all my map stuff in VASSAL to reduce the chance of user errors creeping in.

  2. I would like to switch between two maps in a game, without moving the playing pieces on top. What is the best way to do this?