A feature like this stairs would be really interesting. Current tool is too rigid that I prefer to build my stairs in 3D without ever using it.
In general, I have noticed that some local versions already have much more complex functionality.
So, often, the programming work has already been done. Just integrate functionalities in other local editions. Maybe in the later ones ..
For example, I appreciated the "window" function of this local edition of VW 2014 (video from minute 2:58).
However, in my last Italian version (VW 2017), this was not there yet.
I have not yet updated to 2018 version, so I ask you if this feature is now integrated in VW 2018 (my local edition provides a cost of € 150 for trial...).