im not, but was just bringing it up. looking through the aircraft, most aircraft are like this. For example the 162 seats in a 737-800. Thats the number for a standard two class configuration, not 1.
The problem isnt in ordering them, its picking aircraft up off the used market. I have to pay 500k extra to reconfigure a 737-300 to its standard 2 class configuration, which its already at seat count wise with all Y seats. If the plane would have came in the standard config to begin with whether its a standard 1 or 2 class, i probably wouldnt have changed it. But in the current 126y, your loosing possible income.
Maybe this needs to be moved to request forum and changed to request the option of having standard (factory installed) one and two class options. That way, there are both layouts available on the used markets so you have the chance to pick up the configuration u want.
typical 1 class config for a -300 is 134-137Y
typical 2 class config for a -300 is 120Y-8C but for our purpose 120y-5C would suffice