Hi, I have a problem. Now, I'm working on my project. It has some macro commads. I tried to find any information about API function, that can help me to make stairs between some floors. What kind of API I should use? May be you have another options to solve this problem. 
How to draw stairs using a macro command REVIT MEP 2012
You should post your question in the Autodesk Revit API forum. You will be much more likely to receive an answer to your issue there.
Corey D. 
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