When you crop media, the front and matte clips are cropped together. You cannot crop the back clip. If you applied the media to more than one surface, all the surfaces are cropped.
You can animate a crop by changing the size and shape of the Crop box at different keyframes. You can also animate the softness of the Crop box.
To crop a clip with the Media list:
(a) Softness area of Crop field (b) Crop area of Crop field
To crop gesturally in the image window:
The clip appears in the image window with a red outline, which indicates the Crop box, and a green outline, which indicates the Softness box.
(a) Crop box (b) Softness box
The crop and softness values in the Media list are updated as you drag.
The cropped media appears in the image window, and the front and matte clip share the same crop.