To clarify:

Options gives the altered options and not "all" the options of a notebook. You can see what options are available by going to the options inspector in the Format menu.

Regards

Anderson,

You can do that programmatically with the SetOptions command. First you need a handle to your Notebook. You can specify it multiple ways (see Guide to Notebook programming. Lets get all of the notebooks and pick one.

mybooks = Notebooks[]
slideshow = mybooks[[3]]

Now look at the options:

In[72]:= Options[slideshow]

Out[72]= {
 ScreenStyleEnvironment -> "Working", 
 StyleDefinitions -> "Default.nb", 
 WindowMargins -> {{42, Automatic}, {Automatic, 24}}, 
 WindowSize -> {808, 751}}

Now change the show environment:

SetOptions[slideshow], ScreenStyleEnvironment -> "Working"]

or

SetOptions[slideshow], ScreenStyleEnvironment -> "SlideShow"]

Using this you can make a program to automatically process your slide shows.

Regards,

Neil