Ripple delete
You can delete an entire clip or a portion of a clip on the timeline. Ripple delete removes the extra space between the media on the timeline. When deleting clips, the Media Bin preserves the original source file.
Ripple delete media on the timeline:
Select the media to delete:
Single clip or effect: Click a clip or effect.
Multiple clips or effects: Hold the Shift or Command key and click the clips or effects.
Portion of a clip: Hold the Shift key and drag an area on the timeline.
Control-click and select Ripple Delete or select Edit > Ripple Delete.
Ripple delete removes the extra space between media when deleting. To maintain the spacing between media on the timeline when deleting, see Delete media on the timeline.