Suspension settings standard suspension settings

The better question is what is the standard suspension ride height measured between set points on the suspension & fixed body parts
If this is correct & bars appear be mounted correctly no problem.
As the bumper bar height can vary dramatically depending upon the tire options the suspension ride height is the only reliable measure

Cheryl should of changed to standard suspension and gave up the air ride.

If the rear suspension is not affected its probably a leak or a front height sensor.

The front struts from either sedan or wagon are interchangeable so either will work, back struts have to be from the same type (wagon or sedan) as top suspension mount plates are different. Just pull the air suspension out and replace with standard struts. There are plenty of people dismantling them so parts are easy to get and quite cheap.
It's easy to swap, just remove each strut and bolt in the standard one, Remove the switch from the dash and get a blanking plate from a dismantled vehicle and fit it into the hole.

Like most bikes, they come with pretty ordinary suspension, as you say, even on the softest setting, they are still not very comfortable. Most standard bike suspension is set up for a heavy person solo, or to carry a pillion passenger and luggage. The only suggestion is to customise your suspension. Ohlins are one of the best for the rear, or Koni. For the front, some new springs of a brand name, and good fork oil, with the correct amount of oil in each leg, mabey a little less if you want it softer.
Hope this helps.

all suspension systems has shocks, but some are free standing and some are part of a Mcpherson Strut assembly, your rear suspension has standard stand alone shocks, they are not air shocks.

Rear suspension settings are adjusted via the suspension mechanism located under the bike near the main rear suspension spring on the underneath of bike parallel with the seat- looks like a can (like a slim beer can) and there is a screw one way to tighten and one way to loosen. Dont know settings but try it out one way then the other. Simple turn the screw according to direction arrows.

Just put all settings at mid-range. Then adjust from there for desired softer or stiffer ride.