How to inhibit the "more y or n" message in Scilab

[Simon [illustratingshadows]

I have several programs written that run in Scilab.
They do a fair amount of assignment and trig. 
 
Scilab insists on echoing th results of all commands
to the Scilab screen, and, when a screen is full, I
get "more y or n". This is an irritation. I have
searched all documents and help files, but nothing
stands out.

QUESTION 1: how can I stop it from filling up the
screen, apart from "clc".
 
QUESTION 2: how can I set some sort of a parameter
to cause "more y or n" not to appear.
 
I am using Windows XP and Scilab 4.1.2. Thanks in
advance.
 
Simon