Rework an existing EA

Hi, 
I want to add some functionality to an existing EA, I got the EA from open source, it works in martingale, it has function to cut the dd at certian level which we can give in parameters, and it also has hedging function while hitting certain level of martingale but not working well, i need you to check it and make that hedging funciton work. Like it should precisely calculate the lot of orders which is in DD and open opposite orders to hedge those with same magic number and there should be a paramter to give the hedging multiplied kinda paramater, so that if the market goes the same opposite direction, i hedging position can reduce the dd if it was higher than the DD lots like if total position of 0.80lot making the DD then the hedging should place order of the opposite side with the same value 0.80lot default, but if i gave the parameter hedge with 1.2 X then it should multiply that open position(0.80) with 1.2 then it would hedge with 0.96 lot with same magic number to avoid confusion while closing all orders and when the equity hits certain level, lets say the profit i set, it should automatically close or it should place the tp for all this group of orders to the breakeven place with calculating the commision

i have attached the file here, it does not have source code, contact me for more details