Here's a simple EA to sell 1 MNQ on 1 MT5 instance :
long magic_number=12345;
#include <Trade\Trade.mqh>
CTrade m_trade; // trading object
int OnInit()
{
m_trade.SetExpertMagicNumber(magic_number);
m_trade.Sell(1,"MNQZ23",0,0,0);
return(INIT_SUCCEEDED);
}
void...