[Zylithan]

No way to get it to intelligently assign neighbors. Rumor has it that red lines help. I notice if the straight path between the white dots (centers of provinces) goes through one and only one red line it will assign neighbors. That means it should do a hex map correct I think. A checkboard as well (I think it would do diagonals). But if you have some oddly shaped provinces (common for me) your out of luck. Also, it will not do wrap-arounds well.

Ctrl-click undoes neighbors, as stated above.