Instead of filling in a port name, fill in a position expressed by latitude and longitude.
This is the only format that will be accepted:
1234X 12345Y (i.e: 3125N 04055W)
X = N or S
Y = E or W
Point to Point is not supported, only Point to Port or Port to Point.
Point to Port is probably not perfect at this stage. As we are continuously improving this function,
we ask for your contribution by reporting unexpected results to us. Such feedback will be looked into immediately.
Good luck!