I need some code to open Martingale positions in an EA I already have.

Hi, 

I have a bunch of EA's that opens a single Binary Options trade per signal. I would like someone to write some code to open a Martingale position every time the trade loses instead of trading the same volume again. So after 1 losing trade the position size doubles, and after another losing trade it doubles again. I would like to control the rate of doubling and the number of times it can lose before giving up the martingale strategy.

I can send you the full EA and if you could replace the normal trade placing code with Martinagle code and show me where the changes have been made then I'm sorted.

Thanks