Took SBS7233A today and this bus has a newly installed standing
area.
Same position as those on the other DDs. It has similar railings to
those found on VO3x.
But because the final forward facing seat (not counting the back
row) is mounted on a step, there is a small wasted space. They have
"cordoned" off that step with metal railings. Maybe can use for
putting luggage... 
They have also crammed 5 seats in the back row and 4 seats in the
sideway facing ones.
They have also managed to squeeze 3 seats between the entrance and
exit doors, with 1 seat before the handlebar and 2 seats after the
handlebar, just like the LO3x, VO3x.
Those seats are new flat and thin VO2x style of seats, not the
thick LO3x/VO3x seen on some other VO2x which have crammed 5 seats
in the back row too.
The only bad point about the standing area is that the windows
there are very low. 