To create a single stair (Target):

1. Click or select Objects > Stair.
   Note: The minimum length a single flight of stairs can be is 0.5 metres.
2. Draw the segment that marks the beginning of the first stair, drag out the flight to the necessary length and then:
   • If the flight is completely contained within one level, click to complete it and go to step 5.
   • If the flight needs to be split across two levels, hold down Ctrl and click.

   You are prompted to accept the default overlap area (this will be somewhere between the minimum 0.5 metres and the maximum 2 metres) or define your own.

3. Press Enter to accept the default overlap area.

   Type n, press Enter and then drag the area to the desired length (minimum of 0.5m to a maximum which cannot exceed the length of the first flight); click to set the overlap area.

4. Place the overlap area in the correct position on the second level of your CAD and continue to draw the rest of the Stair. Click to complete the section.
5. When prompted if you wish to add a landing, type n and press Enter.
6. You are prompted to "Create as Target or Filtering object? [F]/T". Type T and press Enter to create the Stair as a target object.

   The Edit Stair dialog is displayed.

7. Enter a meaningful name for the new stair in the 'Name' box.
8. Select an 'Entity direction on stair':
   • Up only
   • Down only
   • Bidirectional (default option)
9. In the 'Link Properties' area, select one of these options:
   • Do not change target
   • Revert to final destination (Entities will proceed to their Final Destination)
   • Specify links

   If you select 'Specify link', click on the 'Links' tab and add your target objects manually following the steps in Linking methods ).

10. If you need to test your model against required regulatory flow rates you may wish to set a maximum value for 'Flow Rate Limiting'. To do so, check the box Maximum and enter a value for people/minute in the adjacent field
11. Entities auto-navigate towards the Focal Point of the object if and when they cannot 'see' it due to obstructions. In rare instances this may cause them to move in an unexpected or illogical manner. To remedy this, click to the 'Target Parameters' tab and uncheck 'Use focal point for navigation'.In this case Entities will navigate towards the closest point on the Focal Segment. Which tab(s) you select depends on the direction Entities will travel in on the Stair.
12. To set Availability and possibly Condition parameters, follow the steps in Setting Availability parameters .
13. Click OK to close the ‘Edit Stair’ dialog.