Do you ask where is visio found in the "stairs" icon ah? I found a lot of shapes, did not see
2 You right click on the drag out of the shape, the "protection" in the "direction" and other related hook removed.
Should not, but there are two possibilities
1 you drag the stairs and other shapes to stick together. This situation changes the setting of the automatic adhesion.
I'm Visio2007.
The location of the stairs is: File - Shape - Map and Plane Layout - Architectural Design - Building Core.
According to the above operation you can find a variety of stairs on the left side.
Good luck!