> Beginning Your Recording
> When you are ready, click the Record button. ScreenFlow enters a countdown mode before recording. You can change the length of this countdown (see Using the Countdown Window).
> Create a short presentation then stop your recording: press Shift-Command-2 or select Stop Record from the ScreenFlow Helper menu in the upper-right corner of your display.
> When you stop recording, ScreenFlow opens your recording in the ScreenFlow editing window with all of your recorded sources placed on the timeline.
> Display video and computer audio are combined into one clip; camera video and microphone audio are combined in another clip, to maintain video/audio sync. Video and audio can be separated by selecting the clip and choosing Edit > Detach Audio.