Topic: I wish the EA only to close the position, not open anymore
this is the story: I change the Ea Studio strategies into MT4 very often. When I change, I wish to hold into MT4 and set up the old EAs to be able only for closing the open positions ( I don't wish to close them manually). That means, the old EAs must be allowed only to close the positions not anymore to open.
How can I do it?