The Route Heatmap can be activated via the global 2D view:
As soon as the "Route Heatmap" button has been activated, the heatmap is displayed to the user.
A view of the number of routes appears below the button.
The calculation of these is based on the maximum number of routes or the number of route segments that run over a waypoint.
An update of the Route Heatmap takes place when the level is shown or hidden.