PolyID:s and Hidden:s seem to work ok now. Although some hidden polys are shown in OE, they are correctly hidden in TE and in the game.
Also there are still some problems in export/conversion... I sent you a PM about it.
Also the conversion seems to create a LOT of new verstices. I suspect that all shared vertices are ignored and every polygon will get individual vertices, even where a shared/combined vertice could be used.
This means larger files after conversion.
btw, HiTech, do you read the "CMs TT" board, or is it better to always post here?