Following my earlier comment, i contacted the author regarding a tool for help with drawing maps. His response is the wall tool. Well, sadly, it's useless for maps. The line fill problem has also not been addressed. I do want this program to succeed, and I've found the author willing to listen, but so far the actual results are a disappointment. I believe the best way to address many of these feature requests is to create a plug-in tool API so that we can write our own.