Make a small addition to an OA created by me

I would need to make an addition to an expert advisor created by me for binartie options. Practically now EA works by opening an operation at 10 € and if the transaction were to go in otm it immediately opens another 20 always with the same maturity. I would need to integrate and adding a second raise to € 40 if the operation went inotm and even if the operation went back into otm immediately open an other operation to 80 € always with the same maturity. I will send the programming string that I have right now and what you will have to integrate what I asked you.