StairMaker is an Add-On installed with your ArchiCAD program. There are two ways to create new stairs in ArchiCAD with StairMaker:
Custom Stair Based on a Standard Stair Type
Custom Stair Based on Manually Drawn Elements
Note: To use StairMaker, it must be placed in ArchiCAD’s Add-Ons folder that is located either in the same folder as ArchiCAD, or in the System Folder (MacOS) or at the location defined in the Windows Registry (Windows).
In both cases, you will be prompted to save the new object which will then listed as an Embedded Object in the Library Manager.
See also Library Manager.