Now the JR radio is a fine radio. Just because it doesn't have as many cool features as the 9C doesn't mean it's bad. It's ok to use for trainers and park flyers. And gliders. And cars.
Seriously, if you have three programmable mixers, switch assignability, and trim slaving, then you should be able to get ailevon action using the same basic control flow as I mentioned above. There's so few JR users though, you may have to send your radio to JR for programming. You will probably feel the difference then.