I have 4 indicators I want to get converted to from Mql4 to Mql5

Hello I have 4 indicator I want to convert from mql4 to mql5 one of them I want to know if I can add a function to it the other 2 can stay the same 

Indicator 1 is 530 lines of code

Indicator 2 is 900 lines of code

Indicator 3 is 610 lines of code 

Indicator 4 is 710 lines of code

the other I wand to change the trade mode buttons please let me know

let me know who can convert the indicators and we can proceed from there.