Create a Key Frame Output
It is sometimes necessary to find the middle frame of an instance for timing purposes and analysis of an action. If you want to analyze these key frames and use them in another application, or print them for a profile folder, first locate the instances which contain the key frames of interest. Then choose the Analysis > Keyframes menu in the main menu bar.
The Key frames will be copied to the Output Window. You can now drag a box around the picture and copy it to the clipboard, from there you can paste it into another application or print it.