To place a stair

Select ( Place Stair ).
The Place Stair properties dialog and Placement ribbon open, allowing you to define the stair attributes.
Identify the anchor point of stair landing on the floor form where the stair will be placed and click to accept the first flight origin.
Tip: For stairs along the walls, use snap function to align the flight edges guiding the walls.
For stairs other than Straight Run, locate the second point and click to accept the landing point.
Moving along the stair runs allows selecting point for tread distribution.
Maneuver the mouse over the geometry in a circular manner to determine the direction and click to accept the direction.
(Optional) For landing stairs, use AccuDraw angle function to get specific angle at the landings, and the snaps align.
Tip: Quarter turn and half turn configurations require selecting one additional placement point and two quarter and three quarter turn configuration require two additional points.

Stair along the walls

Stairs can be placed along the wall at an angle.

For stairs with a landing:

Use the AccuDraw angle option to create the turn accurately if you have the specified angle.

Snap on the walls to align the stair flights along the walls.