Richard and Franz, this is indeed a thing. If you go surveying in the field, you want to do it only once. With the risk of fields suddenly not being compatible with newer versions of Agopengps, you might consider creating a survey outside of Agopengps for once and for all. The missing link so far is how to go from a survey with given coordinates (CSV, shapefile, …) to a KML file that can be imported into Agopengps, hopefully we can find a way. See also: KML creation outside Google Earth