Re: direct support for toggle-able paragraphs/sections in quickbook

>> IOW, author expect most users will not need to see this extra information and
> it will
>> only distract them, but it still needs to be present in some form for
> "advanced" user.
>>
>> Is there any way to add support for something like this into QB?
>
> I don't understand a need for this.

+1.

Small extra information could be placed inside a footnote or a sidebar. 
  Larger blocks in an appendix.  Sidebars can also float: 
http://sagehill.net/docbookxsl/SideFloats.html

John.