1. Click on the Edit button on the right side of the file thumbnail.
2. Go to the Trim tab.
3. Click the Add trim marker button to add a pair of sliders.
4. Drag the handles/ play slider to select video you want to keep or delete.
5. You can also specify the Start Time and End Time to keep or delete.
This software supports multiple trimmings, so you can trim several parts from one video at a time. To reset, click the Reset button to remove current sliders.
Tips: There are two options under the "Preference" drop down list:
Keep the selected section and Delete the selected section.
After trimming, you can click the Done button to save the settings.