By default, the entire recording is an already selected segment. **A segment is the selected portion of video that you want to keep**
To remove the beginning and end of a recording, grab the handle on either end of the time line and drag it inward to the point at which you want the recording to begin or end.
As you can see here, the beginning and ending are amended, and eliminated portions are grayed out.
To delete middle portions of your presentation, click once on the scissors icon and then once on the section of the presentation you’d like to remove.
The first click sets the starts point. Moving the mouse to the right will preview what is going to be cut. Click again to set the end point.
Tip: Try holding the ctrl key + left mouse click to save some time.
When completed, the segment can be adjusted by dragging the handles in either direction (if needed).
The final result is two segments (numbers one and two below) that will be included after encode.
Then "Save and continue" or "Save and quit". Save and continue commits your changes and allows to keep working. Save and quit commits your changes and closes the editor.