Altering a Mask's Shape
 
 
 

You can manipulate points on a mask while displaying the incoming or outgoing clip.

Selecting Points

Select points using the Select option in the Edit Mode box. You can select individual points, individual tangents, or a group of points:

Breaking Points

You can break or modify a tangent using the Break option in the Edit Mode box:

Calculating Tangents

Use the Auto option in the Edit Mode box to calculate the tangent for a point according to the curve the point is on. Select the Auto option and click a tangent.