Hi Bob, It's good to hear from you but unfortunately I didn't notice your Elan had a Cortex in it or how it was setup. While the Orbit power jack provides some similar functionality to the SmartFly unit, it appears to be more compact and mainly focuses on providing dual receiver batteries and good power distribution to the servos. The SmartFly unit also provides the ability to "fan out" multiple servos from a single receiver channel, such as driving 2, Aileron servos from a single receiver channel. Some of the Smart Fly units also provide servo reversing and end point adjustment functions as well.
Since the Orbit power jack seems to plug right on to the receivers servo ports, you would of course need to connect the Cortex externally and that makes perfect sense.

Thinking further about my previous post, much of what I said about connecting the Cortex externally seeming to bypass the SmartFly's functionality came from the assumption that the Ailerons, Elevators and Rudders would need to each be placed on a separate receiver channel, instead of using the SmartFly to drive the multiple servos. I now, don't see any reason why that would be needed. As long as the SmartFly is configured to correctly drive each servo and provide the desired servo travel it seems the best way to connect the Cortex would be to simply connect the Cortex between the SmartFly unit and the servos without making any other changes.