The skimmer lets you preview clips in the timeline or the browser without affecting the playhead position. You use the skimmer to skim, or freely move over clips or projects to play them back at the speed of the pointer.
The skimmer appears as a red vertical line as you move the pointer over the area you’re skimming. If you have snapping turned on, the skimmer turns orange when it snaps to a position..
When skimming is turned on, you can skim to see what’s in other clips, while maintaining the playhead position in the timeline or browser. If both the playhead and skimmer are present in the same clip, the skimmer becomes the default position for playback or editing..
When skimming is turned off or the skimmer is not present in a clip, the playhead assumes the default position.
The bottom portion of the Final Cut Pro window contains the timeline, where you create your movie project by adding and arranging clips and making all your edits.
In Final Cut Pro, you can organize related clips into sets, called auditions, from which you can choose one clip to use. You can create an audition composed of different clips to try out multiple takes, or you can create an audition composed of multiple versions of the same clip to preview different effects. When you record live audio, you can have multiple takes grouped into auditions automatically. Auditions appear in the browser and timeline as clips with an audition icon in the top-left corner.
Range Tool in Final Cut Pro X
Instead of selecting whole clips, you can select a range within any clip in the timeline or the browser. You can trim range selections, mark them with ratings and keywords, and modify them in other ways. You can adjust the range start and end points by dragging either side of the selection.
In the timeline, you can also select a range that spans multiple clips. Range selections in the timeline have a thick yellow border and range handles on each side.
In the browser, you can set multiple ranges within one or more clips, and you can select and deselect ranges after you set them. Selected ranges have a thick yellow border and straight range handles. Unselected ranges have a thin orange border. Editing commands operate on yellow selections only.