Fabrizio, please ignore my previous post.
Until you find a better solution, this is how I solve the autogen/mesh problem:
- No renaming/deleting of MegaCity Hawaii's files needed any more;
- An exclude line as posted earlyer;
- A flatten line: Flatten.0=13,N21 20.95,W157 59.69,N21 19.88,W157 52.97,N21 17.40,W157 51.36,N21 17.64,W158 3.79
added to the FSD PHNL entry. It creates an ugly "step" in the sea but it's far enough from the airport and mostly invisible around midday.
Iouri