After taking a closer look on the Graphisoft’s default stair description object, i reconsidered and i am going to use the STAIR2D_DESCRIPTION_POSITION now.
This one has fewer modification options but its working fine 🙂
it is a 2D stair component. I am not quiet sure how this stair label/component is called in english as i am using the german version. I uploaded it if you want to dig into the problem. Hope you are going to find a solution or at least the problem.