Idiot's Guide to Making Custom Maps?

[Zylithan]

Short Version:
Is there such a thing? I can't find one on the forums or the docs coming with the game...

Longer Version:
Apologies for my ignorance.. I am trying to learn how to make some custom maps for Dom3. I'm a noob to playing, and even worse at making maps. I looked through the stickies and forums, and can't find an Idiot's guide. I made some pretty map pictures, and I drew lines on them, and I put white dots in the middle of each province, then I load them into the map editor. And it usually recognizes all the provinces I marked with dots. But there is no or little neighbor connectivity. From the game docs, I gather I could use text editor to fix all of this - but I like GUIs and this seems slow. Is there any way using the map editor? It seems like right and left clicking on the flags help me make neighbors, but they always seem to get erased when I move on to do other provinces. If anyone could help I promise to try to make it worthwhile by making some maps...
If I missed something obvious, apologies!

Thanks!