Moving or Deleting Segments in the Timeline
After you add assets to a sequence, you can rearrange them in the timeline. A portion of media that is contained on a track in a sequence is called a segment.
For an advanced sequence, after you have added a segment to the timeline, you cannot switch it to a different track. For example, if you drag and drop a clip into the timeline as a SOT, you cannot then select that segment in the timeline and drag it to another audio track. If the clip has audio on a channel that is not mapped to the audio track in which you insert it, you will not hear the audio when the sequence is played.
To move a segment in a sequence:
1. Click the segment you want to move.
2. Drag the segment and drop it in a new location in the timeline.
In a long sequence, moving a segment to the viewable edge of the sequence (top or bottom for a vertical timeline, left or right for a horizontal timeline) scrolls the sequence in that direction.
To delete a segment from a sequence, do one of the following:

Right-click the segment you want to delete and select Delete Segment.

Click the segment you want to delete and click the Delete button in the Sequence pane toolbar.

Click the segment you want to delete and select Delete Segment from the Sequence pane menu.

Click the segment you want to delete and press Delete or Backspace (Windows).
Deleting a segment from the sequence does not remove the original source media from the server.