Luis galdos

I have a indicator for metatrader 4 the name is Imacd-div-sig extern variables are:

extern string _tmp1_ = " --- Common ---";

extern int AccDigits = 5;

extern int MaxBars = 1000;

extern string _tmp2_ = " --- Divergence ---";

extern int LeftFractal.Period = 3;

extern int RightFractal.Period = 1;

extern int Width.Min = 1;

extern int Width.Max = 25;

extern int Height.Min = 15;

extern int Height.Max = 1000;

extern string _tmp3_ = " --- MACD ---";

extern int MACD.FastEMA = 12;

extern int MACD.SlowEMA = 26; 

extern int MACD.Signal = 9;

extern double BullishDiv.ResetAbove = 0.0;

extern double BearishDiv.ResetBelow = 0.0;

extern string _tmp4_ = " --- Graphic ---";

extern int Shift.Arrow = 20;

extern int Shift.Dot = 10;

extern int Shift.Line = 1;

extern string _tmp5_ = " --- Alerts ---";

extern int    SignalBar = 1;

extern bool   PopupOn  = true;

extern bool   SoundOn  = true;

extern string LongSignal = "alert.wav";

extern string ShortSignal = "alert.wav";

extern bool   MailOn   = true; 

I need convert this indicator to an Expert Advicer for metatrader 5

I want extern variables can change before expert advicer run in plataform