It will be a short one, but I really think you may find it useful in some occasion in your trade.
I made a video about the process, a very simple one in fact.
Involved steps are the following (Revit 2014 only):
- Isolate the stair in the view
- Edit the stair by component
- Export as SAT file
- Make a new generic model, adaptive template
- import the SAT
- Explode it! (yes!)
- Load the family in the project
- Make Parts, done.
Each component of the stair creates a part, and now you are the master of the divisions!