Please explain where to find the number of treads; on the normal program the options for the stairs does not include a number. The only options availaible are Stairway Width, Stairway Height, Tread Rise, Tread Run and Tread Nose which are all size, The manual/tutorials does not explain the re;ationship between the options and how to get them to match the wall height. Also there is no option for adding railings.
Please can someone help.