When you have air suspension, and ORG, you only have 4 options instead of 5. They are listed differently because of the higher ride height. Off road 2 without ORG is the same height as off road 1 with ORG. Off road 1, without ORG is the same as normal, with ORG. Normal height without ORG is not available with ORG. Aero and exit are the same on both.
This is incorrect.
I have listed what you get.
Just strange that 2WD has OR
I think you are confusing the terms.
The air suspension has 5 adjustable levels on a stock truck 2WD or 4WD doesn't matter. Entry exit, Aero, Normal, Offroad Level 1, and Offroad Level 2.
These are just the names they choose to use for the different height levels, ignore that it's called Offroad, OR1 is higher then normal and OR2 is higher then OR1.
If you have the "off road group" package it gives you stuff like a skid plate and a lift pre-installed, and the computer is set to only allow you to enter these 4 modes. Entry exit, Aero, Normal, and Offroad Level 1.
The off-road group package is only offered on 4x4 vehicles BUT you can set your truck with Alfaobd that it is an offroad truck, and it just removes Offroad Level 2 as an air suspension setting (even on a 2WD truck). This setting does NOT raise the height, as the raised height from the off road group package is a physical piece of hardware, not just extra air in the bags.
Hope this helps.