switch(somevar){
  case OPT1:
    ///
    break;
  case OPT2:
    ///
    break;
    ...
  if(anothervar > CONST1){
    case OPT3:
      ///
      break;
    case OPT4:
      ///
      break;
    ...
  }
  if(anothervar > CONST2){
     case OPT5:
        ///
        break;
      case OPT6:
        ///
        break;
      ...
  }
}