Next Video Sometimes, you might ask yourself, why something happened. And I did it very often because I didn’t know what my EA was doing when I was sleeping. If you want to find out how your chart might have looked a few hours ago, a screenshot will be very useful. Just bring up MetaTrader with the F4 key and add another line within the brackets. This will create a screenshot with a name screenshot.gif in your files folder. Once again, compile it and see if it works. Here is our screenshot. That was very easy, wasn’t it? When you do it in back testing, it’s in tester\files and in real time trading, it’s in MQL4\files.