To Apply a 2D DVE to a Key (Fly Key)
The 2D Fly key is when the 2D DVE engine is applied to another key type.
The DVE resources for this key may not be available. Depending on how your switcher is configured, you may be asked to steal the resources from another element, or be prevented from using the resources.
You should set up your key as you want it before applying the Fly Key.

