I think already 'supported' in the sense that something like #+HOMEPAGE:
would count as being an in-buffer setting as described in the
http://orgmode.org/manual/In_002dbuffer-settings.html

Org mode uses special lines in the buffer to define settings on a per-file
basis. These lines start with a '#+' followed by a keyword, a colon, and
then individual words defining a setting.




On Fri, Mar 21, 2014 at 10:07 PM, Bastien <bzg@gnu.org> wrote:

> Hi Marcin,
>
> Marcin Borkowski <mbork@wmi.amu.edu.pl> writes:
>
> > what about adding #+HOMEPAGE (alongside #+AUTHOR and #+EMAIL) to the
> > metadata?
>
> What would it do?
>
> > What are the pros and cons?  (One argument against: default
> > LaTeX classes do not support this.  Any other?)
>
> Not sure what "supporting" means :)
>
> --
>  Bastien
>
>