This feature works. Here's how...


In the Layer Window...
Select FX 204 - Crop - Soft Edge
Select Parameter 1, Softness Level (I use 30 to start)
In the keystone parameter boxes underneath the z rotation window make the following adjustments...
Upper Left (Red Numbers) = -80
Upper Right (Blue Numbers) = -80
Lower Left (Red Numbers) = 80
Lower Right (Blue Numbers) = 80

This will give you a place to start. Crop accordingly and adjust softness to your hearts desire.

The other cropping options use these keystone parameters and also the parameters on the other side of the "key" box (under the y rotation window)

A soft crop circle/ellipse would be a good feature for the future if Richard is reading this.

Kevin