Operation Manual

Edit 117
Adding a mask frame
Adding a mask or a matte to an overlay clip applies a shape around it that
you can render opaque or transparent.
To add a mask frame
1 Click Mask & Chroma Key in the Attribute tab.
2 Click Apply Overlay Options then choose Mask Frame from the Type
drop-down list.
3 Select a mask frame.
4 Watch the Preview Window to see how the new settings affect the
image.
Without Chroma Key
With Chroma Key