You can insert an image into your map using Draw -> Insert file. You can then either place this on a sheet below the one you draw on, or add a transparency effect to the sheet holding the image if you wish to have it as an overlay.

CC3+ has a command called TRACED than can construct an entity from an image automatically, but this works best if the image is black landmasses/transparent seas, and it will only be able to handle the outline, it can't really do inland contours and things like that (unless you are able to extract those manually as a separate image to be processed.)

Yes. There are a couple of ways to go about that. All the options do require some manual work to get a good end result, but getting the coastlines is quite simple (Although you do probably want to add additional detail to a zoomed in part of the world). See here for one way to do it

I can't make all potential useful topics sticky, the front page would just be a long list of stickies, which is not very user-friendly. Instead, it is listed in the resources category, which you can find directly from the left-hand navigation menu (Helpful resources and FAQ link)

Lines can unfortunately just have a single path, they can't branch, so an additional section like that cannot be part of the line. What I would probably to in this case is to draw the outer line as a single line, and then have that "inner" vertical line as a separate line, and make sure to arrange the lines so it is below, not above the outer lines. This will give you much better corners.

Otherwise, it would have to be made as a polygon, which is doable, but a bit more work.

Disappearing parts during overlap happens because the same line overlaps itself. There are several ways to avoid or fix this:

• Don't start drawing at a corner. If the start/end is in the middle of a length of wall you don't need any overlaps
• Build the walls using more than one path. If they are not the same entity, you don't get the disappearing problem.
• Use tools like Combine Path or Path to Poly to combine the lines to make the corners actual corners and not just "meeting points of the ends"

Pick the_CC3+ Mike Schley export setting when exporting from CC3+. Or, if you have defined your own export setting, make sure to use the @Templates\CC3+ Mike Schley.FCW template file in the first page of the export settings.