UPDATE: You can now trim video clips directly in the timeline. Just hover your cursor on either edge of the video and drag the edge to trim.
Step 1: Click anywhere within the orange block.
Step 2: Choose an Entry and Exit transition from these drop down menus.
Step 3: Slide the bar under Video Audio Level to control the audio volume of the video clip you added.
Step 4: Slide the bar under Main Audio Level to control the audio volume of your original audio file.
Step 5: To use an Audio Fade-in effect choose from this drop down menu.
Step 6: To use an Audio Fade-out effect choose from this drop down menu.
Step 7: To update the changes click UPDATE VIDEO.
More Info on Audio Controls:
-Both audio controls on means you will hear the audio of both the audio file and the video clip.
-If you do not want the audio of the video clip to play slide the Video Audio Level completely to the left. This will shut it off.
Preview Changes To Video Clip:
-Click the play button to preview the video clip itself.
Be aware you cannot preview the changes you have made to audio levels and transitions here.
To preview your changes to the audio levels and any video transitions click UPDATE VIDEO and return to the editor.