There are a few places where the channel order gets set in the radio. The one under
SYStem settings,
RADIO SETUP, (pg 3/7) will affect only "NEW" models that are created. It will NOT change models that already exist. Look at field "Def chan order". It will normally be AETR or TAER.
I prefer the order I started out using with Spektrum radios TAER and this is how mine is set.
The "Mode" two lines below that affects the joystick input mapping and in the states most people use mode
2 . Left stick is Rud/Thr and Right stick is Ele/Ail
It would be interesting to see this configuration on your radio.
In addition, each individual model can be customized completely different. This is done via
MDL INPUTS (pg 5/12) and those can be modified with
MIXES (pg 6/12)