the GPX loader supports tracks and waypoints,etc.
both the track and each individual waypoint are placed under a PinPoint object when imported.The pinpoint ensures that the objects under it stay fixed and relative to the DEM Earth parent , when you zoom and change the geographic location.
Supported Features
up to version 1.56 , waypoints and tracks are supported.
from version 1.60 and beyond, also support routes.
DEM Earth R3 has TrackGraph object, which is very useful combined with GPS tracks,
TIP:
if you need to import a GPX track that only has points in it, and no track, you need to add a dummy track. You can do this with any GIS app, or as follows:
Inside Google Earth, open the KML or GPX file - then choose 'add new path' - draw a simple path anywhere on the map. Draw a boundary around all of your points and save out in Babel, as a GPX with default parameters, and drag drop the resulting file, into C4D, to get a landscape,with your points on it, and your dummy track, which you can then delete.