EA just for setting trailing stops when in profit?

Hello, fellow Forexers!

I am interested in finding out the feasibility of making a simple (I think) MT4 EA that

--trader would enter trades manually
--EA would set trailing stop once order is in adequate profit (break even +1 minimum)
--could have different levels of trailing stops (5, 10, 15, etc)


I figure something this simple must've been done before. Anyone got something in their arsenal that looks like this?

Well... read my post here.

I hope you will find it interesting

Thanks! Am still trying to figure out specs ( I am not a programmer) but think I have the gist of it.........