static InputFormRef N_Init(Form self)
 {
     return(new InputFormRef(self
                             , "N_"
                             , Program.ROM.RomInfo.worldmap_event_on_stageselect_pointer()
                             , 4
                             , (int i, uint addr) =>
     {
         if (i == 0)
         {
             return true;
         }
         return U.isPointer(Program.ROM.u32(addr))
         ;
     }
                             , (int i, uint addr) =>
     {
         string name = "";
         if (i > 0)
         {
             name = MapSettingForm.GetMapNameFromWorldMapEventID((uint)i);
         }
         return U.ToHexString(i) + " " + name;
     }
                             ));
 }