How to use enum to choose order type?

enum menu0 {
   menu0_0,   // Triple click on row tagged >> to access menu
};
input menu0  Note=menu0_0;
enum menu1 {
   menu1_0=OP_BUYLIMIT,  // buy limit pending order >>
   menu1_1=OP_SELLLIMIT, // sell limit pending order >>
   menu1_2=OP_BUYSTOP,   // buy stop pending order >>
   menu1_3=OP_SELLSTOP,  // sell stop pending order >>
};
input menu1 OrderType=menu1_0;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
  Print("OrderType=",OrderType);
//---
   
//---
   return(INIT_SUCCEEDED);
  }