Create your new mission with the various parameters. Then use the Merge function (near the saves). It will prompt for a file, select the Campaign_LOC.mis file, do not check the savable button.
You now have the harbors, etc on the map. so you know where you are. You can add the harbor traffic to see that as well.
There's a sticky here in this forum:
http://www.subsim.com/radioroom/showthread.php?t=111790