On Sat, Sep 27, 2014 at 07:59:13AM -0700, Jay Iyer wrote:
>    Hi,
>    I would like to use the S5 backend for HTML presentations but I am not
>    able to figure out how: (1) to set up headlines for incremental slide
>    builds and (2) to add speaker notes.Ā I spent a lot of time on the mailing
>    list archive and other places but couldnā€™t find clear instructions on
>    what property values and/or tags are needed on the headlines and their
>    subheadings.Ā Are there any additional exporter settingsĀ needed in the
>    buffer? Ā I am using Org 8.2.5h on Emacs 24.3.1 (Apple build) and the
>    built in exporter engines.


Documentation for ox-s5 is @ https://github.com/cybercode/org-slides#ox-s5el,
although personally i use ox-deck (documented at the same location) now.

rick