I found good handrail stairs going to second floor, but now when I look my beauty stairs I doesn´t show up throught level. It´s posseble that I need something like door frames at horisontal line, or sheer off something like the service hutch.

Is there somewhere, that kind of "throughter" between the floors at my stairs. I know that I can make the hole at editing the floor in the drawing stage too. But whether is it the only way?