enabled
Preconditions:
- a route is provided via MapboxNavigationViewportDataSource.onRouteChanged 
- updates are provided via MapboxNavigationViewportDataSource.onRouteProgressChanged 
- produced following frame has pitch - 0
When this option is enabled and the preconditions are met, this controls whether additional points after the upcoming maneuver should be framed to provide more context.
Defaults to true.