Hi Markus,
been playing around with making heat maps from my activities, Strava's look great but only a tiny fraction of my activities are on there and within imports limited to 25 activities it would take way too long to achieve.
Best I have found is a free site https://www.gpsheatmaps.com/generator/ but this has no base map etc,
Any plans to add this rubiTracks? I'm sure others would like this, maybe for RubiTrack6???
cheers,
Peter