Overlay clips : Adjusting the overall transparency of overlay clips
 
Adjusting the overall transparency of overlay clips
You can quickly adjust the overall transparency of an overlay clip to achieve a semi-transparent effect. For more control over how the overlay clip blends with the background, see Blending overlay clips with the background.
You can also adjust the transparency of tracks using Track Transparency mode. See Track transparency.
To apply transparency to an Overlay clip
1 In the Timeline, select an overlay clip.
2 In the Options panel, click Mask & Chroma Key on the Effect tab.
3 Mark the Apply Overlay Options check box, and enter a value in the Transparency box in the upper left corner.