To work with coordinates in Map2Fly, they must be entered in decimal degree (DG) format.

X Degrees, minutes and seconds (GMS): 51°19’37.2 “N 12°19’05.3 “E
✔ Decimal degree (DG): 51.327002, 12.318130

Instead of entering individual coordinates, you can also use the new KML import feature. Learn more about it here: How Do I Import KML Files?