Long-range flight planning, through tracks, across Europe and other areas with restrictions, dynamically CI optimised (4D), random optimised routing with automatic route compliance, workable interface, etc.
Oh, and a supplier with great and timely support, easily configurable input and output parameters, and partnering with whom will not break the bank...
First time here but just had to chime in
May I suggest that you talk to Qantas about their experience with Lido and LSY.
rgds