uso google earth 5 perchè sono su linux, e questa opzione non la vedo...

New Features in Google Earth 5.2

• Improved embedded browser functionality: Better integration of embedded browser with Google Earth Application.
• Track and Multitrack in Google Earth: A track allows you to create one visible object in Google Earth (either a Point icon or a Model) that moves over time between multiple positions. Using the time slider, you can animate position and orientation of an object and show a line tracing the path. A multitrack is a collection of tracks. You can create Track and Multitrack by authoring KML documents or by importing your GPS data (from a number of GPS receivers or file formats such as GPX) into Google Earth.
• Elevation Profile in Google Earth: You can see elevation profile of a line-string or track in Google Earth. It plots the elevation profile, speed, and associated extended data (for example, heart rate) in a KML file.
• Added file import types: NMEA (.log and .nmea), Garmin GDB, Garmin Training Center, and Ozi Explorer files can now all be read. Garmin fitness extensions are now read from GPX. Extended data for Elevation Profile and Track is handled when available.

Non so se possa servirti a qualcosa, ma dal change log si vede che la funzionalità è stata inserita dalla versione 5.2

ok ora vedo un po' peccato che il risultato nel sito linkato da wbike non sia più visibile. dice "pagina non più esistente"!!!