To add an extended, parametric stair

Select

(Extended Stairs).

Select an insertion point in for the stair and then a second point to indicate the X axis of the first stair run. The Extended Stairs dialog opens and the initial stair is inserted. The settings used from the previous extended stair are maintained as defaults.

(Optional) On the Stair tab, either:

Click [+] to add a stair run

or

Click [-] to remove the currently displayed stair run

Tip: Click

(Apply) to see the current parameters reflected in the model.