I just meant a trailing stop to close part of one order. For example I go long on the EURUSD but the price falls, it closes 2 lots of that trade. Then if it keeps going down it will close the other lots or however many I chose but if it goes back up then the trailing stop will follow.
Its a sort of security thing, I calculate the lots so I can break even with the first trade and anything the rest of the lots is profit. You know, usually people say "I could've made this much if only I kept my position open but it pulled back on me", I want to see if I can actually make it