when I used a signal and than turned on automate the order execution , it worked and I got into a trade . but when I left the computer on during the night so disconnected my brocer . When I connected next day and started automate the order execution again , it was unchanged and sell stop was gone. i...

I am new to the program multicharts. how can one write a signal that buy on FastK (2) falls below 30 on today's closing price.
Exit when the FastK (2) rises above 70 on the closure.
Ulf