Create an simple RMA Indicator in MT5 with the same logic from my pine scipt coding from tradingview

Hi developer, I have created a nice RMA indicator called HAWK Micro Line in pine script from tradingview, but I need help to create the same indicator in MT5. 

The indicator settings are only 2:

Lengthx = input(5, title="Lenght HAWK Micro Line")
Vfactx = input(0.718, minval=0.01,step=0.01, title="Multiplier Factor for HAWK Micro Line")

The Coding in pine script are only some lines, but the different between the calssic indicator and my indicator is the RMA usage, not the SMA.

//-----------------------------------------------------------------------------//
// SCHRANZTRADING   
// Indicator: HAWK Micro Line
// Version 1.0
// Last change: 10.11.2021
//-----------------------------------------------------------------------------//
//@version=2
study("HAWK Micro Line", shorttitle="HAWK Micro Line", overlay=true)

Lengthx     = input(5, title="Lenght HAWK Micro Line")
Vfactx      = input(0.718, minval=0.01,step=0.01, title="Multiplier Factor for HAWK Micro Line")

Source_HAWK = input(close, title="Source")

FirstRMAx   = rma(Source_HAWK, Lengthx)
SecondRMAx  = rma(FirstRMAx, Lengthx)
ThirdRMAx   = rma(SecondRMAx, Lengthx)
FourthRMAx  = rma(ThirdRMAx, Lengthx)
FifthRMAx   = rma(FourthRMAx, Lengthx)
SixthRMAx   = rma(FifthRMAx, Lengthx)

//Doing all the calculations which are from 
c1x = -Vfactx*Vfactx*Vfactx
c2x = 3*Vfactx*Vfactx + 3*Vfactx*Vfactx*Vfactx
c3x = -6*Vfactx*Vfactx -3*Vfactx -3*Vfactx*Vfactx*Vfactx
c4x = 1 + 3*Vfactx + Vfactx*Vfactx*Vfactx + 3*Vfactx*Vfactx

T3MAx = c1x * SixthRMAx + c2x * FifthRMAx + c3x * FourthRMAx + c4x * ThirdRMAx

color_of_HAWK_Micro_Line = T3MAx > T3MAx[1] ? lime : red
plot(T3MAx, title="HAWK Micro Line", color=color_of_HAWK_Micro_Line)