Building in Dark Areas

[Clap]

Hi, im trying to build something in Dark Areas, for example, near Star Chamber, near Jail or In the ML Dark Area. The problem is that i don't know how to make it so players are able to walk on that area, with my GM i can with no problem, but normal players can't. I tried with terrain + statics but it doesn't work. Is it possible?

Thanks

[Hitman]

Did you give the players your new map files? Otherwise they probably still see "black".