Retiming clips, including optical flow

- Final Cut X has a menu dedicated to speed changes.…Let's see how we can start retiming clips…and work with Optical Flow.…For speed and retiming changes,…I'm using my Tahoe montage here, from the Tahoe event.…I'm just going to duplicate it,…and call the duplicate "Retiming".…I'm just going to double-click to open that up, okay.…So, we're going to retime a couple of these clips here,…and I'm going to start with just these first couple clips.…I'm going to Command-plus to zoom in, there we go.…

Let's take the second clip; I'm going to select it,…I'm going to move my playhead here with an Option click,…and that moves the playhead into place.…You'll see that there's a speedometer menu here,…and that's my retiming menu.…It's also found under the Modify menu,…under the ID of retiming clips.…And to start with it, all I'm going to do…is click on the speedometer, and slow this clip down by 50%.…And you can see that it opened up what they call the…Retime editor, and it lengthened the clip on the timeline.…

You can see it became longer, which may be bad for music,…