ea question: increasing position size

I've looked around a bit and on the mql site but can't find anything that would help me out, maybe some of you guys have done this before or have seen it.

After a trade is made and goes to profit, I want to increase the position at a certain level. What would be the most effective way to do this. Is it just to open a new trade and then make sure they're both closed with the same stop or is there another way that's easier?

Thanks for any advise,

Jonas

Open another trade. This is the only way to do it.

Well I was thinking close the existent trade and open a new larger one for ease of management during testing but obviously the cost will be different and larger than the alternative.

Think you're right though, thanks for the comment.