It's been a long time, but Mappie 1.5.9 will be available for download once the installer is fixed!

Mappie 1.5.9 adds the ability to load/save all 4 map layers in one go automatically (Just load the base and the other 3 are pulled in). If you load one of the layers, then Mappie will only load that layer.

I must say that some of the new maps are a lot easier to navigate/understand when viewed in 3D mode...