Before I answer your questions I just wanted to say that style is looking fantastic!When the steps are at the inner corners, the left edge of the step is getting sliced off so we can see into the step. I can fix this if I slide the step to the left or right, but I'm wondering what is causing that?
That behaviour is caused by the Bevel Corning setting in the generator's parameters. It overrides the segments slice settings so that you have the option to retain bevelled corners while all other slice operations are disable. You can disable it, but you may need to make a few changes to align the segments with the corners correctly.
For example, with bevel disabled, the segment will be aligned to the spline before the corner. To get around this, add a compose operator and wire a null segment to the first two inputs, followed by the steps. This puts a null segment before the corner, another right on the corner, and your steps after the corner. When using the clip spline to cut in the area for the voms, is there a way to have the walls move with the clipping spline in rail clone (in the y-axis of the row)
I'm afraid I can't think of a way to track the position on the Y axis of the clipping splines. Probably your technique for adjust the position using a spinner is the easiest at this point. The other option would be to use the clipping spline as the boundary for a generator that builds the VOM, and simultaneously cuts the hole. But it might take a bit of manual positioning.
I hope that helps, please let me know if you have any further questions.