If it is a connecting stair case (the ones you add railings to) just press CTRL on the railing and it should delete it.
Stay in the center when possible.
The company Bruno makes many different types of stair lifts. Bruno's has outdoor stair lifts, straight rail stair lifts, custom curved rail stair lefts.
banister
No, the word stair is a noun. If the noun stair or stairway is used with another noun, to create a specific term, it is called a "noun adjunct" rather than an adjective, as in the term "stair rail."
It made it harder to go upstairs.
One can find a pattern for a stair rail in many different places. Some good web pages one can get it are The Family Handyman, eHow, Youtube and Ron Hazelton.
a newel post
Yes
There really is not a difference. A guard rail has a handrail on it so they are really the same thing. All staircases must be designed to fit any guard-rail type building code. No spaces greater than 4 inches and no less than 36 inches tall. Source: http://www.stairpartsblog.com
A stair rail is a railing that runs along the edge of a staircase to provide support and stability for people using the stairs. It contributes to safety by preventing falls and accidents, especially for those who may have difficulty with balance or mobility. Additionally, a well-designed stair rail can enhance the overall look of a staircase, adding to its aesthetic appeal and creating a more visually pleasing space.
The people under the stairs
I believe the rail is called a banister here in Australia not sure about the rest of the world.:)