In the manual Pro 12, it says there is a snapshot button that you can use to capture a gif of is in the editing window. It's not jumping out at me. Thanks
Did you notice that you had resurrected a thread that is over 10 years old? Please do not do this, since the original question refers to a now, very old, version of MEP, even if your solution is still applicable (which a quick investigation using the latest version of MEP, suggests it is not).