Elevetion profile of the tracks

[caddis]

This is a request for the developers
It would be very useful to have elevetion profile of the tracks
The best it would be to add DEM elevevetion data to every track, from online available source (i.e. NASA SRTM1, ODP1, ...)
Or at least, to see elevetion profile of the imported tack that already have inside altitude data.
Thank you!