at the moment if you want to edit maps in DP I'd hex edit the movement permissions (64 bytes per line, horizontal), and use a plugin for maya or some other 3D modeling program in the thing interdpth released.
I'm really psyched about a new map editor for D/P.
You know how the maps show up on the Advance Generations? Well, seeing that D/P/P have 3D graphics, the map has an overhead view instead, which lets it know that it has 3D graphics? :\