Mark,
I'm no "JR Guru", I wouldn't know how to reallocate the channels in the receiver, but on the XBus there are some menu items that will allow you to do just that.
Maybe some of the JR wizards here can help with that.

Sorry for some off-topic stuff, but you can find the info here Mark:

The ASSI is described here: http://www.rcuniverse.com/forum/rc-j...atalogger.html
(Note, the ASSI device now also supports JR XBus mode )
and the Android telemetry system here: http://www.rcuniverse.com/forum/rc-j...ng-things.html