Left Railing, Right Railing

[Sweet Potato]

I have Home Designer 7.09.

I have an interior stairway. One set of stairs goes up to a mid landing, then the remaining set of stairs going up to the next floor in the opposite direction of the bottom set of stairs, side by side. I am wanting a left railing on one set of stairs and a right railing on the other adjacent set of stairs.
In the Staircase Specification box, whatever railing I last checkmarked (Left Railing or Right Railing), it shows up on both set of stairs. I cannot make a right railing only on the bottom set of stairs and a left railing only on the upper set of stairs.

How can I do this?

Thank you.