navigami

I been going through google earth mapping key places. Then attempted to put them as landmarks in navigami.

However, its a bit strange. I use the longitude and latitude output from google earth such as 53°21'52.78"N and 1°48'57.05"W, which goes to Edale UK.
Then just put into navigami as 53.215278 and 1.485705. They should, in theory work.

I tested to see the output from a landmark based from my GPS position, checked the long and lat in google earth and it showed practically the same numbers.

Is there any sure way add the correct landmark positions into navigami, by manual placement?