a little help with making stadiums


Reserve Team
ok so i decided to start making my own stadiums. i made a very simple stadium in 3ds max so i could get familiar with the process of making and importing stadiums before i get to making real life ones.
so i made the simple stadium and saved it as a .3ds file. now this is where im stuck. i read a few tutorials and even read the help section in stadium builder, but im still not sure exactly what i have to do.
so if anyone could help me out with this, i would really appreciate it.