Is there an easy way to move the maps of the Map application from the internal memory to the memory card on the N810? In order not to break the Map application? Thanks

When I tried moving the maps the Map program was still able to read them on the memory card with no problems. I think the program must be designed to automatically check the removable memory card if it can't locate the maps on the internal memory card. At any rate, if it doesn't work just move the maps back to the internal memory card.

Shut down Map.
Move the entire maps directory to the external card.
Fire up Map.
Worked for me.