Inclusion or Exclusion Questions from Quiz
It is possible to decide whether to exclude one or more questions from the quiz.
Such questions will not be shown in the HTML quiz although they will continue to
exist in the quiz questions list (therefore they are saved with the quiz).
There are three ways for including or excluding a question:
1. press the push-button
above the text box of a question. A new window
(called "question property") is shown, as in figure below:

2. In the questions tree, click the right mouse button on the questions tree
node, and select the item "Include/Exclude", as shown in figure below:

3. Using the tool-bar, above the questions tree: on the questions tree, select the
question to exclude, and click the button
on the tool-bar
In all of cases, the following figure shows how the question appear on quiz editor : a
red rounded "wrong-way" sign in the questions tree node and above the question
text.