To create or modify a matte:
The Matte menu appears.
(a) Matte button (b) Matte Opacity field
The value in the Matte Opacity field determines the transparency of the paint applied to the matte. Use a value of 100 to apply fully opaque paint or objects to the matte. Reduce the Matte Opacity value to increase the transparency of the paint.
The new matte clip is saved to the Desktop with the front clip.