Question about tracks/trails/travelogue on a Garmin 3590LMT in Europe (Holland).

If I have "travel log" ticked, a track log is created, which is shown on the map.
That travel log can be deleted via "Applications" -> "Where was I" using "Clear Travel History".
If I know where that travel log is stored (and in what format) on the 3590, I would be able to put a track/trace/travelogue (made within BaseCamp) there, and thus I can run on that track.

Is this a possible option?

Or else is it possible to disable (or only on request) the automatic rout calculation?

Thanks in advance for any reaction.