We believe that features like fully automated cost driven route optimization, correct application of the cost index concept, management by exception, fuel tankering, EDTO, Terrain avoidance scenarios, precise enroute charges computation, tailored NOTAM and weather briefings, consideration of weather hazards, and more are basic features and do not have to be explained in detail. FLIGHTKEYS 5D is extending these standard features with probabilistic (the 5fth) dimensions, environmental sustainability functions and enhanced in-flight trajectory management and drives basic capabilities even further.